Load Specifications
Bullet:.257 | 100gr | Barnes TSX BT
Bullet Manufacturer:Barnes
Bullet Weight:100 gr
Bullet Diameter:0.257"
Bullet Length:<<locked>>
Caliber:.257 Roberts load data
Case Length (l3):2.233"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:58 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:51,488 psi
Recommended Twist Rate:1:10.0
Load data in caliber .257 Roberts with .257 | 100gr | Barnes TSX BT bullet and 250 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and ReloadSwiss RS 70.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 84% | 44,077 psi | 86% | 2854 fps | 100% |
| Accurate 2495 | <<locked>> | 84% | 44,353 psi | 86% | 2861 fps | 100% |
| Accurate 2495 | <<locked>> | 84% | 44,077 psi | 86% | 2854 fps | 100% |
| Accurate 2495 | <<locked>> | 84% | 44,353 psi | 86% | 2861 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 44,367 psi | 86% | 2900 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 44,962 psi | 87% | 2910 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 44,367 psi | 86% | 2900 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 44,962 psi | 87% | 2910 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 43,642 psi | 85% | 2946 fps | 97.3% |
| Accurate 4350 | <<locked>> | 94% | 44,121 psi | 86% | 2959 fps | 97.4% |
| Accurate 4350 | <<locked>> | 94% | 43,642 psi | 85% | 2946 fps | 97.3% |
| Accurate 4350 | <<locked>> | 94% | 44,121 psi | 86% | 2959 fps | 97.4% |
| ADI AR 2206H | <<locked>> | 82% | 45,469 psi | 88% | 2923 fps | 98.7% |
| ADI AR 2206H | <<locked>> | 82% | 46,006 psi | 89% | 2933 fps | 98.8% |
| ADI AR 2206H | <<locked>> | 82% | 45,469 psi | 88% | 2923 fps | 98.7% |
| ADI AR 2206H | <<locked>> | 82% | 46,006 psi | 89% | 2933 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 86% | 43,874 psi | 85% | 2871 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 86% | 44,063 psi | 86% | 2877 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 86% | 43,874 psi | 85% | 2871 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 86% | 44,063 psi | 86% | 2877 fps | 97.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 44,570 psi | 87% | 3015 fps | 97.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 45,049 psi | 87% | 3031 fps | 98% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 44,570 psi | 87% | 3015 fps | 97.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 45,049 psi | 87% | 3031 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 46,499 psi | 90% | 2956 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 43,816 psi | 85% | 2904 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 46,499 psi | 90% | 2956 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 43,816 psi | 85% | 2904 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 84% | 43,976 psi | 85% | 2913 fps | 98% |
| Alliant Reloder-15 | <<locked>> | 84% | 44,150 psi | 86% | 2917 fps | 98% |
| Alliant Reloder-15 | <<locked>> | 84% | 43,976 psi | 85% | 2913 fps | 98% |
| Alliant Reloder-15 | <<locked>> | 84% | 44,150 psi | 86% | 2917 fps | 98% |
| Alliant Reloder-16 | <<locked>> | 96% | 46,151 psi | 90% | 3025 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 96% | 46,267 psi | 90% | 3028 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 96% | 46,151 psi | 90% | 3025 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 96% | 46,267 psi | 90% | 3028 fps | 98.2% |
| Alliant Reloder-17 | <<locked>> | 92% | 46,586 psi | 90% | 3058 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 90% | 43,845 psi | 85% | 3005 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 92% | 46,586 psi | 90% | 3058 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 90% | 43,845 psi | 85% | 3005 fps | 99% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,028 psi | 72% | 2838 fps | 97.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,376 psi | 73% | 2848 fps | 97.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,028 psi | 72% | 2838 fps | 97.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,376 psi | 73% | 2848 fps | 97.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,684 psi | 81% | 3009 fps | 96.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,684 psi | 81% | 3009 fps | 96.2% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 44,875 psi | 87% | 2927 fps | 97.6% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 45,368 psi | 88% | 2936 fps | 97.8% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 44,875 psi | 87% | 2927 fps | 97.6% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 45,368 psi | 88% | 2936 fps | 97.8% |
| Bofors RP3 | <<locked>> | 88% | 46,369 psi | 90% | 2959 fps | 99.4% |
| Bofors RP3 | <<locked>> | 88% | 46,543 psi | 90% | 2966 fps | 99.5% |
| Bofors RP3 | <<locked>> | 88% | 46,369 psi | 90% | 2959 fps | 99.4% |
| Bofors RP3 | <<locked>> | 88% | 46,543 psi | 90% | 2966 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 82% | 46,557 psi | 90% | 2956 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 82% | 46,557 psi | 90% | 2956 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 86% | 44,425 psi | 86% | 2910 fps | 96.9% |
| Hodgdon H380 | <<locked>> | 86% | 44,599 psi | 87% | 2913 fps | 96.9% |
| Hodgdon H380 | <<locked>> | 86% | 44,425 psi | 86% | 2910 fps | 96.9% |
| Hodgdon H380 | <<locked>> | 86% | 44,599 psi | 87% | 2913 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 82% | 45,919 psi | 89% | 2936 fps | 99.1% |
| Hodgdon H4895 | <<locked>> | 82% | 46,441 psi | 90% | 2949 fps | 99.2% |
| Hodgdon H4895 | <<locked>> | 82% | 45,919 psi | 89% | 2936 fps | 99.1% |
| Hodgdon H4895 | <<locked>> | 82% | 46,441 psi | 90% | 2949 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 45,339 psi | 88% | 2953 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 45,847 psi | 89% | 2966 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 45,339 psi | 88% | 2953 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 45,847 psi | 89% | 2966 fps | 99.2% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 44,918 psi | 87% | 2963 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 45,107 psi | 88% | 2966 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 44,918 psi | 87% | 2963 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 45,107 psi | 88% | 2966 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,027 psi | 68% | 1903 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,085 psi | 68% | 1906 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,027 psi | 68% | 1903 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,085 psi | 68% | 1906 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 44,222 psi | 86% | 2887 fps | 98.8% |
| Hodgdon VARGET | <<locked>> | 82% | 44,454 psi | 86% | 2894 fps | 98.9% |
| Hodgdon VARGET | <<locked>> | 82% | 44,222 psi | 86% | 2887 fps | 98.8% |
| Hodgdon VARGET | <<locked>> | 82% | 44,454 psi | 86% | 2894 fps | 98.9% |
| IMR 3031 | <<locked>> | 82% | 45,730 psi | 89% | 2940 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 46,035 psi | 89% | 2946 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 45,730 psi | 89% | 2940 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 46,035 psi | 89% | 2946 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 46,122 psi | 90% | 2910 fps | 98.4% |
| IMR 4064 | <<locked>> | 86% | 46,311 psi | 90% | 2917 fps | 98.5% |
| IMR 4064 | <<locked>> | 86% | 46,122 psi | 90% | 2910 fps | 98.4% |
| IMR 4064 | <<locked>> | 86% | 46,311 psi | 90% | 2917 fps | 98.5% |
| IMR 4831 | <<locked>> | 96% | 44,962 psi | 87% | 2956 fps | 97.7% |
| IMR 4831 | <<locked>> | 96% | 45,136 psi | 88% | 2959 fps | 97.7% |
| IMR 4831 | <<locked>> | 96% | 44,962 psi | 87% | 2956 fps | 97.7% |
| IMR 4831 | <<locked>> | 96% | 45,136 psi | 88% | 2959 fps | 97.7% |
| IMR 4895 | <<locked>> | 84% | 45,078 psi | 88% | 2946 fps | 98.7% |
| IMR 4895 | <<locked>> | 84% | 45,281 psi | 88% | 2949 fps | 98.7% |
| IMR 4895 | <<locked>> | 84% | 45,078 psi | 88% | 2946 fps | 98.7% |
| IMR 4895 | <<locked>> | 84% | 45,281 psi | 88% | 2949 fps | 98.7% |
| Lovex D073.6 | <<locked>> | 82% | 44,585 psi | 87% | 2900 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 82% | 44,802 psi | 87% | 2907 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 44,585 psi | 87% | 2900 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 82% | 44,802 psi | 87% | 2907 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 45,774 psi | 89% | 2861 fps | 98.7% |
| Lovex S060 | <<locked>> | 82% | 45,963 psi | 89% | 2867 fps | 98.8% |
| Lovex S060 | <<locked>> | 82% | 45,774 psi | 89% | 2861 fps | 98.7% |
| Lovex S060 | <<locked>> | 82% | 45,963 psi | 89% | 2867 fps | 98.8% |
| Lovex S062 | <<locked>> | 86% | 45,832 psi | 89% | 2910 fps | 99.5% |
| Lovex S062 | <<locked>> | 86% | 46,035 psi | 89% | 2917 fps | 99.5% |
| Lovex S062 | <<locked>> | 86% | 45,832 psi | 89% | 2910 fps | 99.5% |
| Lovex S062 | <<locked>> | 86% | 46,035 psi | 89% | 2917 fps | 99.5% |
| Lovex S065 | <<locked>> | 92% | 45,426 psi | 88% | 2900 fps | 96.2% |
| Lovex S065 | <<locked>> | 92% | 45,585 psi | 89% | 2904 fps | 96.3% |
| Lovex S065 | <<locked>> | 92% | 45,426 psi | 88% | 2900 fps | 96.2% |
| Lovex S065 | <<locked>> | 92% | 45,585 psi | 89% | 2904 fps | 96.3% |
| Norma 201 | <<locked>> | 82% | 44,440 psi | 86% | 2874 fps | 99.3% |
| Norma 201 | <<locked>> | 82% | 44,643 psi | 87% | 2877 fps | 99.4% |
| Norma 201 | <<locked>> | 82% | 44,440 psi | 86% | 2874 fps | 99.3% |
| Norma 201 | <<locked>> | 82% | 44,643 psi | 87% | 2877 fps | 99.4% |
| Norma 202 | <<locked>> | 82% | 44,875 psi | 87% | 2887 fps | 100% |
| Norma 202 | <<locked>> | 82% | 45,092 psi | 88% | 2890 fps | 100% |
| Norma 202 | <<locked>> | 82% | 44,875 psi | 87% | 2887 fps | 100% |
| Norma 202 | <<locked>> | 82% | 45,092 psi | 88% | 2890 fps | 100% |
| Norma 203B | <<locked>> | 86% | 46,093 psi | 90% | 2953 fps | 98.8% |
| Norma 203B | <<locked>> | 86% | 46,311 psi | 90% | 2959 fps | 98.9% |
| Norma 203B | <<locked>> | 86% | 46,093 psi | 90% | 2953 fps | 98.8% |
| Norma 203B | <<locked>> | 86% | 46,311 psi | 90% | 2959 fps | 98.9% |
| Norma URP | <<locked>> | 94% | 43,903 psi | 85% | 2953 fps | 97.2% |
| Norma URP | <<locked>> | 94% | 44,063 psi | 86% | 2956 fps | 97.3% |
| Norma URP | <<locked>> | 94% | 43,903 psi | 85% | 2953 fps | 97.2% |
| Norma URP | <<locked>> | 94% | 44,063 psi | 86% | 2956 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 86% | 46,151 psi | 90% | 2972 fps | 98.7% |
| Ramshot Big Game | <<locked>> | 84% | 43,511 psi | 85% | 2923 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 86% | 46,151 psi | 90% | 2972 fps | 98.7% |
| Ramshot Big Game | <<locked>> | 84% | 43,511 psi | 85% | 2923 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 96% | 45,818 psi | 89% | 2992 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 96% | 46,224 psi | 90% | 3002 fps | 96% |
| Ramshot Hunter | <<locked>> | 96% | 45,818 psi | 89% | 2992 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 96% | 46,224 psi | 90% | 3002 fps | 96% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,375 psi | 69% | 1946 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,447 psi | 69% | 1949 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,375 psi | 69% | 1946 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,447 psi | 69% | 1949 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 43,366 psi | 84% | 2963 fps | 97.8% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 43,627 psi | 85% | 2969 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 43,366 psi | 84% | 2963 fps | 97.8% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 43,627 psi | 85% | 2969 fps | 97.9% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 46,340 psi | 90% | 3068 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 43,613 psi | 85% | 3012 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 46,340 psi | 90% | 3068 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 43,613 psi | 85% | 3012 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 43,497 psi | 84% | 2969 fps | 96.9% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 44,005 psi | 85% | 2979 fps | 97.1% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 43,497 psi | 84% | 2969 fps | 96.9% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 44,005 psi | 85% | 2979 fps | 97.1% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 43,961 psi | 85% | 2989 fps | 96.3% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 44,353 psi | 86% | 2999 fps | 96.5% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 43,961 psi | 85% | 2989 fps | 96.3% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 44,353 psi | 86% | 2999 fps | 96.5% |
| Rottweil R 902 | <<locked>> | 84% | 45,092 psi | 88% | 2877 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 84% | 45,339 psi | 88% | 2884 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 84% | 45,092 psi | 88% | 2877 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 84% | 45,339 psi | 88% | 2884 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 90% | 46,267 psi | 90% | 2953 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 90% | 46,441 psi | 90% | 2956 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 90% | 46,267 psi | 90% | 2953 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 90% | 46,441 psi | 90% | 2956 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 92% | 45,426 psi | 88% | 2900 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 92% | 45,585 psi | 89% | 2904 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 92% | 45,426 psi | 88% | 2900 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 92% | 45,585 psi | 89% | 2904 fps | 96.3% |
| Shooters World Match Rifle | <<locked>> | 82% | 44,585 psi | 87% | 2900 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 44,802 psi | 87% | 2907 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 82% | 44,585 psi | 87% | 2900 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 44,802 psi | 87% | 2907 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 45,832 psi | 89% | 2910 fps | 99.5% |
| Shooters World Precision | <<locked>> | 86% | 46,035 psi | 89% | 2917 fps | 99.5% |
| Shooters World Precision | <<locked>> | 86% | 45,832 psi | 89% | 2910 fps | 99.5% |
| Shooters World Precision | <<locked>> | 86% | 46,035 psi | 89% | 2917 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 45,020 psi | 87% | 2959 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 45,194 psi | 88% | 2963 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 45,020 psi | 87% | 2959 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 45,194 psi | 88% | 2963 fps | 98.6% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 45,977 psi | 89% | 2910 fps | 97.1% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 46,499 psi | 90% | 2920 fps | 97.3% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 45,977 psi | 89% | 2910 fps | 97.1% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 46,499 psi | 90% | 2920 fps | 97.3% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 44,208 psi | 86% | 2890 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 44,396 psi | 86% | 2897 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 44,208 psi | 86% | 2890 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 44,396 psi | 86% | 2897 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 46,253 psi | 90% | 2835 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 46,470 psi | 90% | 2841 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 46,253 psi | 90% | 2835 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 46,470 psi | 90% | 2841 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 46,253 psi | 90% | 2835 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 46,470 psi | 90% | 2838 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 46,253 psi | 90% | 2835 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 46,470 psi | 90% | 2838 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 45,556 psi | 88% | 2831 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 45,745 psi | 89% | 2835 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 45,556 psi | 88% | 2831 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 45,745 psi | 89% | 2835 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 45,687 psi | 89% | 2907 fps | 98.6% |
| Somchem S341 | <<locked>> | 82% | 46,195 psi | 90% | 2917 fps | 98.7% |
| Somchem S341 | <<locked>> | 82% | 45,687 psi | 89% | 2907 fps | 98.6% |
| Somchem S341 | <<locked>> | 82% | 46,195 psi | 90% | 2917 fps | 98.7% |
| Somchem S355 | <<locked>> | 88% | 43,947 psi | 85% | 2897 fps | 98.8% |
| Somchem S355 | <<locked>> | 88% | 44,425 psi | 86% | 2907 fps | 98.9% |
| Somchem S355 | <<locked>> | 88% | 43,947 psi | 85% | 2897 fps | 98.8% |
| Somchem S355 | <<locked>> | 88% | 44,425 psi | 86% | 2907 fps | 98.9% |
| Somchem S365 | <<locked>> | 98% | 44,788 psi | 87% | 3015 fps | 99.8% |
| Somchem S365 | <<locked>> | 98% | 44,962 psi | 87% | 3018 fps | 99.8% |
| Somchem S365 | <<locked>> | 98% | 44,788 psi | 87% | 3015 fps | 99.8% |
| Somchem S365 | <<locked>> | 98% | 44,962 psi | 87% | 3018 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 82% | 46,557 psi | 90% | 2828 fps | 100% |
| Vihtavuori N133 | <<locked>> | 82% | 46,557 psi | 90% | 2828 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 44,353 psi | 86% | 2854 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 44,918 psi | 87% | 2867 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 44,353 psi | 86% | 2854 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 44,918 psi | 87% | 2867 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 45,266 psi | 88% | 2867 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 45,788 psi | 89% | 2877 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 45,266 psi | 88% | 2867 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 45,788 psi | 89% | 2877 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 45,107 psi | 88% | 2884 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 90% | 45,281 psi | 88% | 2890 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 90% | 45,107 psi | 88% | 2884 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 90% | 45,281 psi | 88% | 2890 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 94% | 45,847 psi | 89% | 2949 fps | 97.6% |
| Vihtavuori N160 | <<locked>> | 94% | 46,325 psi | 90% | 2959 fps | 97.7% |
| Vihtavuori N160 | <<locked>> | 94% | 45,847 psi | 89% | 2949 fps | 97.6% |
| Vihtavuori N160 | <<locked>> | 94% | 46,325 psi | 90% | 2959 fps | 97.7% |
| Vihtavuori N540 | <<locked>> | 84% | 43,729 psi | 85% | 2854 fps | 100% |
| Vihtavuori N540 | <<locked>> | 84% | 43,903 psi | 85% | 2861 fps | 100% |
| Vihtavuori N540 | <<locked>> | 84% | 43,729 psi | 85% | 2854 fps | 100% |
| Vihtavuori N540 | <<locked>> | 84% | 43,903 psi | 85% | 2861 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 45,179 psi | 88% | 2953 fps | 97.3% |
| Vihtavuori N550 | <<locked>> | 94% | 45,339 psi | 88% | 2956 fps | 97.3% |
| Vihtavuori N550 | <<locked>> | 94% | 45,179 psi | 88% | 2953 fps | 97.3% |
| Vihtavuori N550 | <<locked>> | 94% | 45,339 psi | 88% | 2956 fps | 97.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,103 psi | 78% | 2920 fps | 97.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,582 psi | 79% | 2933 fps | 97.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,103 psi | 78% | 2920 fps | 97.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,582 psi | 79% | 2933 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 46,499 psi | 90% | 2936 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 43,497 psi | 84% | 2881 fps | 98.9% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 46,499 psi | 90% | 2936 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 43,497 psi | 84% | 2881 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 43,584 psi | 85% | 2894 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 82% | 43,758 psi | 85% | 2900 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 82% | 43,584 psi | 85% | 2894 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 82% | 43,758 psi | 85% | 2900 fps | 98.8% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 38,551 psi | 75% | 2749 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,783 psi | 75% | 2756 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,551 psi | 75% | 2749 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,783 psi | 75% | 2756 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 36,463 psi | 71% | 2733 fps | 99.6% |
| Accurate 4064 | <<locked>> | 80% | 36,680 psi | 71% | 2740 fps | 99.7% |
| Accurate 4064 | <<locked>> | 80% | 36,463 psi | 71% | 2733 fps | 99.6% |
| Accurate 4064 | <<locked>> | 80% | 36,680 psi | 71% | 2740 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 37,942 psi | 74% | 2825 fps | 95.6% |
| Accurate 4350 | <<locked>> | 90% | 38,159 psi | 74% | 2831 fps | 95.7% |
| Accurate 4350 | <<locked>> | 90% | 37,942 psi | 74% | 2825 fps | 95.6% |
| Accurate 4350 | <<locked>> | 90% | 38,159 psi | 74% | 2831 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 42,699 psi | 83% | 2864 fps | 98.1% |
| ADI AR 2206H | <<locked>> | 80% | 42,917 psi | 83% | 2871 fps | 98.2% |
| ADI AR 2206H | <<locked>> | 80% | 42,699 psi | 83% | 2864 fps | 98.1% |
| ADI AR 2206H | <<locked>> | 80% | 42,917 psi | 83% | 2871 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 80% | 36,289 psi | 70% | 2700 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 36,477 psi | 71% | 2707 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 36,289 psi | 70% | 2700 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 36,477 psi | 71% | 2707 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 38,653 psi | 75% | 2877 fps | 96% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,131 psi | 76% | 2894 fps | 96.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 38,653 psi | 75% | 2877 fps | 96% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,131 psi | 76% | 2894 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,679 psi | 69% | 2720 fps | 97.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,868 psi | 70% | 2726 fps | 97.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,679 psi | 69% | 2720 fps | 97.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,868 psi | 70% | 2726 fps | 97.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,435 psi | 75% | 2789 fps | 96.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,624 psi | 75% | 2795 fps | 96.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,435 psi | 75% | 2789 fps | 96.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,624 psi | 75% | 2795 fps | 96.6% |
| Alliant Reloder-16 | <<locked>> | 90% | 38,218 psi | 74% | 2841 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 90% | 38,377 psi | 75% | 2848 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 90% | 38,218 psi | 74% | 2841 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 90% | 38,377 psi | 75% | 2848 fps | 95.8% |
| Alliant Reloder-17 | 40.3 gr | 82% | 32,953 psi | 64% | 2730 fps | 95.5% |
| Alliant Reloder-17 | 40.3 gr | 82% | 33,098 psi | 64% | 2736 fps | 95.6% |
| Alliant Reloder-17 | 40.3 gr | 82% | 32,953 psi | 64% | 2730 fps | 95.5% |
| Alliant Reloder-17 | 40.3 gr | 82% | 33,098 psi | 64% | 2736 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 96% | 32,663 psi | 63% | 2717 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 96% | 32,735 psi | 64% | 2723 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 96% | 32,663 psi | 63% | 2717 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 96% | 32,735 psi | 64% | 2723 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 98% | 38,769 psi | 75% | 2936 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 98% | 38,769 psi | 75% | 2936 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,887 psi | 81% | 2864 fps | 96.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,351 psi | 82% | 2874 fps | 97.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,887 psi | 81% | 2864 fps | 96.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,351 psi | 82% | 2874 fps | 97.1% |
| Bofors RP3 | <<locked>> | 80% | 35,070 psi | 68% | 2717 fps | 97.1% |
| Bofors RP3 | <<locked>> | 80% | 35,259 psi | 68% | 2723 fps | 97.2% |
| Bofors RP3 | <<locked>> | 80% | 35,070 psi | 68% | 2717 fps | 97.1% |
| Bofors RP3 | <<locked>> | 80% | 35,259 psi | 68% | 2723 fps | 97.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,395 psi | 84% | 2897 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,395 psi | 84% | 2897 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 82% | 38,798 psi | 75% | 2785 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 82% | 38,972 psi | 76% | 2792 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 82% | 38,798 psi | 75% | 2785 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 82% | 38,972 psi | 76% | 2792 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 43,076 psi | 84% | 2881 fps | 98.6% |
| Hodgdon H4895 | <<locked>> | 80% | 43,279 psi | 84% | 2884 fps | 98.7% |
| Hodgdon H4895 | <<locked>> | 80% | 43,076 psi | 84% | 2881 fps | 98.6% |
| Hodgdon H4895 | <<locked>> | 80% | 43,279 psi | 84% | 2884 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 32,692 psi | 63% | 2664 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 32,851 psi | 64% | 2671 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 32,692 psi | 63% | 2664 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 32,851 psi | 64% | 2671 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,189 psi | 76% | 2841 fps | 98.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,378 psi | 76% | 2848 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,189 psi | 76% | 2841 fps | 98.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,378 psi | 76% | 2848 fps | 98.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,078 psi | 51% | 1706 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,904 psi | 50% | 1703 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,078 psi | 51% | 1706 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,904 psi | 50% | 1703 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,510 psi | 81% | 2828 fps | 98.3% |
| Hodgdon VARGET | <<locked>> | 80% | 41,713 psi | 81% | 2835 fps | 98.3% |
| Hodgdon VARGET | <<locked>> | 80% | 41,510 psi | 81% | 2828 fps | 98.3% |
| Hodgdon VARGET | <<locked>> | 80% | 41,713 psi | 81% | 2835 fps | 98.3% |
| IMR 3031 | <<locked>> | 80% | 42,757 psi | 83% | 2884 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 43,018 psi | 84% | 2890 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 42,757 psi | 83% | 2884 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 43,018 psi | 84% | 2890 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,029 psi | 74% | 2736 fps | 96.5% |
| IMR 4064 | <<locked>> | 80% | 38,232 psi | 74% | 2746 fps | 96.6% |
| IMR 4064 | <<locked>> | 80% | 38,029 psi | 74% | 2736 fps | 96.5% |
| IMR 4064 | <<locked>> | 80% | 38,232 psi | 74% | 2746 fps | 96.6% |
| IMR 4831 | <<locked>> | 90% | 36,651 psi | 71% | 2776 fps | 95.2% |
| IMR 4831 | <<locked>> | 90% | 36,796 psi | 71% | 2779 fps | 95.3% |
| IMR 4831 | <<locked>> | 90% | 36,651 psi | 71% | 2776 fps | 95.2% |
| IMR 4831 | <<locked>> | 90% | 36,796 psi | 71% | 2779 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 39,349 psi | 76% | 2822 fps | 97.4% |
| IMR 4895 | <<locked>> | 80% | 39,552 psi | 77% | 2828 fps | 97.5% |
| IMR 4895 | <<locked>> | 80% | 39,349 psi | 76% | 2822 fps | 97.4% |
| IMR 4895 | <<locked>> | 80% | 39,552 psi | 77% | 2828 fps | 97.5% |
| Lovex D073.6 | <<locked>> | 80% | 41,452 psi | 81% | 2841 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 41,959 psi | 81% | 2854 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 41,452 psi | 81% | 2841 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 41,959 psi | 81% | 2854 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 42,989 psi | 83% | 2808 fps | 98.2% |
| Lovex S060 | <<locked>> | 80% | 43,207 psi | 84% | 2815 fps | 98.3% |
| Lovex S060 | <<locked>> | 80% | 42,989 psi | 83% | 2808 fps | 98.2% |
| Lovex S060 | <<locked>> | 80% | 43,207 psi | 84% | 2815 fps | 98.3% |
| Lovex S062 | <<locked>> | 80% | 37,840 psi | 73% | 2743 fps | 98.2% |
| Lovex S062 | <<locked>> | 80% | 38,043 psi | 74% | 2749 fps | 98.2% |
| Lovex S062 | <<locked>> | 80% | 37,840 psi | 73% | 2743 fps | 98.2% |
| Lovex S062 | <<locked>> | 80% | 38,043 psi | 74% | 2749 fps | 98.2% |
| Lovex S065 | <<locked>> | 90% | 42,699 psi | 83% | 2841 fps | 95.4% |
| Lovex S065 | <<locked>> | 90% | 42,844 psi | 83% | 2848 fps | 95.5% |
| Lovex S065 | <<locked>> | 90% | 42,699 psi | 83% | 2841 fps | 95.4% |
| Lovex S065 | <<locked>> | 90% | 42,844 psi | 83% | 2848 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 41,684 psi | 81% | 2815 fps | 98.9% |
| Norma 201 | <<locked>> | 80% | 41,901 psi | 81% | 2822 fps | 99% |
| Norma 201 | <<locked>> | 80% | 41,684 psi | 81% | 2815 fps | 98.9% |
| Norma 201 | <<locked>> | 80% | 41,901 psi | 81% | 2822 fps | 99% |
| Norma 202 | <<locked>> | 80% | 42,047 psi | 82% | 2831 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 42,293 psi | 82% | 2838 fps | 100% |
| Norma 202 | <<locked>> | 80% | 42,047 psi | 82% | 2831 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 42,293 psi | 82% | 2838 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,782 psi | 73% | 2776 fps | 96.9% |
| Norma 203B | <<locked>> | 80% | 38,000 psi | 74% | 2782 fps | 97% |
| Norma 203B | <<locked>> | 80% | 37,782 psi | 73% | 2776 fps | 96.9% |
| Norma 203B | <<locked>> | 80% | 38,000 psi | 74% | 2782 fps | 97% |
| Norma URP | <<locked>> | 90% | 38,232 psi | 74% | 2825 fps | 95.5% |
| Norma URP | <<locked>> | 90% | 38,377 psi | 75% | 2831 fps | 95.6% |
| Norma URP | <<locked>> | 90% | 38,232 psi | 74% | 2825 fps | 95.5% |
| Norma URP | <<locked>> | 90% | 38,377 psi | 75% | 2831 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 37,289 psi | 72% | 2782 fps | 96.5% |
| Ramshot Big Game | <<locked>> | 80% | 37,739 psi | 73% | 2795 fps | 96.7% |
| Ramshot Big Game | <<locked>> | 80% | 37,289 psi | 72% | 2782 fps | 96.5% |
| Ramshot Big Game | <<locked>> | 80% | 37,739 psi | 73% | 2795 fps | 96.7% |
| Ramshot Hunter | <<locked>> | 94% | 43,004 psi | 84% | 2933 fps | 95% |
| Ramshot Hunter | <<locked>> | 94% | 43,149 psi | 84% | 2936 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 94% | 43,004 psi | 84% | 2933 fps | 95% |
| Ramshot Hunter | <<locked>> | 94% | 43,149 psi | 84% | 2936 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,208 psi | 51% | 1742 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,324 psi | 51% | 1745 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,208 psi | 51% | 1742 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,324 psi | 51% | 1745 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,234 psi | 78% | 2894 fps | 97% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,437 psi | 79% | 2900 fps | 97.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,234 psi | 78% | 2894 fps | 97% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,437 psi | 79% | 2900 fps | 97.1% |
| ReloadSwiss RS 60 | 39.4 gr | 80% | 32,764 psi | 64% | 2740 fps | 98% |
| ReloadSwiss RS 60 | 39.4 gr | 80% | 33,127 psi | 64% | 2753 fps | 98.1% |
| ReloadSwiss RS 60 | 39.4 gr | 80% | 32,764 psi | 64% | 2740 fps | 98% |
| ReloadSwiss RS 60 | 39.4 gr | 80% | 33,127 psi | 64% | 2753 fps | 98.1% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 37,898 psi | 74% | 2844 fps | 95.1% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 38,058 psi | 74% | 2848 fps | 95.2% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 37,898 psi | 74% | 2844 fps | 95.1% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 38,058 psi | 74% | 2848 fps | 95.2% |
| ReloadSwiss RS 70 | 45 gr | 92% | 40,988 psi | 80% | 2917 fps | 95.3% |
| ReloadSwiss RS 70 | 46 gr | 92% | 41,350 psi | 80% | 2930 fps | 95.5% |
| ReloadSwiss RS 70 | 45 gr | 92% | 40,988 psi | 80% | 2917 fps | 95.3% |
| ReloadSwiss RS 70 | 46 gr | 92% | 41,350 psi | 80% | 2930 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 39,711 psi | 77% | 2766 fps | 98.5% |
| Rottweil R 902 | <<locked>> | 80% | 39,929 psi | 78% | 2772 fps | 98.6% |
| Rottweil R 902 | <<locked>> | 80% | 39,711 psi | 77% | 2766 fps | 98.5% |
| Rottweil R 902 | <<locked>> | 80% | 39,929 psi | 78% | 2772 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 80% | 32,938 psi | 64% | 2654 fps | 96% |
| Rottweil R 903 | <<locked>> | 80% | 33,156 psi | 64% | 2661 fps | 96.1% |
| Rottweil R 903 | <<locked>> | 80% | 32,938 psi | 64% | 2654 fps | 96% |
| Rottweil R 903 | <<locked>> | 80% | 33,156 psi | 64% | 2661 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 90% | 42,699 psi | 83% | 2841 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 42,844 psi | 83% | 2848 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 90% | 42,699 psi | 83% | 2841 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 42,844 psi | 83% | 2848 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,452 psi | 81% | 2841 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,959 psi | 81% | 2854 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,452 psi | 81% | 2841 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,959 psi | 81% | 2854 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 37,840 psi | 73% | 2743 fps | 98.2% |
| Shooters World Precision | <<locked>> | 80% | 38,043 psi | 74% | 2749 fps | 98.2% |
| Shooters World Precision | <<locked>> | 80% | 37,840 psi | 73% | 2743 fps | 98.2% |
| Shooters World Precision | <<locked>> | 80% | 38,043 psi | 74% | 2749 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,113 psi | 66% | 2707 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,316 psi | 67% | 2713 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,113 psi | 66% | 2707 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,316 psi | 67% | 2713 fps | 95.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,830 psi | 83% | 2844 fps | 96.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,033 psi | 84% | 2851 fps | 96.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,830 psi | 83% | 2844 fps | 96.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,033 psi | 84% | 2851 fps | 96.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,234 psi | 80% | 2828 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,452 psi | 81% | 2835 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,234 psi | 80% | 2828 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,452 psi | 81% | 2835 fps | 97.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,308 psi | 84% | 2782 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,540 psi | 85% | 2789 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,308 psi | 84% | 2782 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,540 psi | 85% | 2789 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,853 psi | 70% | 2631 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,056 psi | 70% | 2638 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,853 psi | 70% | 2631 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,056 psi | 70% | 2638 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 42,801 psi | 83% | 2779 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,004 psi | 84% | 2785 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 42,801 psi | 83% | 2779 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,004 psi | 84% | 2785 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,641 psi | 83% | 2848 fps | 98% |
| Somchem S341 | <<locked>> | 80% | 43,091 psi | 84% | 2858 fps | 98.2% |
| Somchem S341 | <<locked>> | 80% | 42,641 psi | 83% | 2848 fps | 98% |
| Somchem S341 | <<locked>> | 80% | 43,091 psi | 84% | 2858 fps | 98.2% |
| Somchem S355 | <<locked>> | 80% | 33,953 psi | 66% | 2667 fps | 96.1% |
| Somchem S355 | <<locked>> | 80% | 34,142 psi | 66% | 2674 fps | 96.2% |
| Somchem S355 | <<locked>> | 80% | 33,953 psi | 66% | 2667 fps | 96.1% |
| Somchem S355 | <<locked>> | 80% | 34,142 psi | 66% | 2674 fps | 96.2% |
| Somchem S365 | <<locked>> | 86% | 29,820 psi | 58% | 2644 fps | 95.8% |
| Somchem S365 | <<locked>> | 86% | 29,979 psi | 58% | 2651 fps | 96% |
| Somchem S365 | <<locked>> | 86% | 29,820 psi | 58% | 2644 fps | 95.8% |
| Somchem S365 | <<locked>> | 86% | 29,979 psi | 58% | 2651 fps | 96% |
| Vihtavuori N133 | <<locked>> | 80% | 43,656 psi | 85% | 2779 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,656 psi | 85% | 2779 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,073 psi | 76% | 2756 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,320 psi | 76% | 2762 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,073 psi | 76% | 2756 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,320 psi | 76% | 2762 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,813 psi | 77% | 2762 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 40,016 psi | 78% | 2766 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 39,813 psi | 77% | 2762 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 40,016 psi | 78% | 2766 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 32,271 psi | 63% | 2602 fps | 97.1% |
| Vihtavuori N150 | <<locked>> | 80% | 32,460 psi | 63% | 2608 fps | 97.2% |
| Vihtavuori N150 | <<locked>> | 80% | 32,271 psi | 63% | 2602 fps | 97.1% |
| Vihtavuori N150 | <<locked>> | 80% | 32,460 psi | 63% | 2608 fps | 97.2% |
| Vihtavuori N160 | <<locked>> | 88% | 37,405 psi | 73% | 2769 fps | 95.1% |
| Vihtavuori N160 | <<locked>> | 88% | 37,869 psi | 74% | 2782 fps | 95.3% |
| Vihtavuori N160 | <<locked>> | 88% | 37,405 psi | 73% | 2769 fps | 95.1% |
| Vihtavuori N160 | <<locked>> | 88% | 37,869 psi | 74% | 2782 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 38,276 psi | 74% | 2743 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 38,464 psi | 75% | 2749 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 38,276 psi | 74% | 2743 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 38,464 psi | 75% | 2749 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 39,479 psi | 77% | 2831 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 90% | 39,668 psi | 77% | 2838 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 90% | 39,479 psi | 77% | 2831 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 90% | 39,668 psi | 77% | 2838 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 96% | 35,070 psi | 68% | 2799 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 96% | 35,244 psi | 68% | 2805 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 96% | 35,070 psi | 68% | 2799 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 96% | 35,244 psi | 68% | 2805 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 33,069 psi | 64% | 2635 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 33,185 psi | 64% | 2641 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 33,069 psi | 64% | 2635 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 33,185 psi | 64% | 2641 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,625 psi | 79% | 2831 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,104 psi | 80% | 2844 fps | 98.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,625 psi | 79% | 2831 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,104 psi | 80% | 2844 fps | 98.3% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 250 powders for .257 Roberts loaded with the .257 | 100gr | Barnes TSX BT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,068 fps; across all powders the maximum-charge window runs from 1,903 fps to 3,068 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 250 of the 250 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (355 MPa), the top charges use 68–90 %, leaving at least 10 % headroom. The 100.0 gr projectile in 0.257" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-23, Alliant Reloder-23 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. ReloadSwiss RS 60, Alliant Reloder-17, ReloadSwiss RS 70 rank at the top here: for .257 Roberts with the .257 | 100gr | Barnes TSX BT they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.