Load Specifications
Bullet Manufacturer:Reichenberg
Bullet Weight:156 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Caliber:.300 WSM load data
Case Length (l3):2.09"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:81.3 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:12.5
Load data in caliber .300 WSM with .308 | 156gr | Reichenberg HDB Ogival bullet and 102 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 Power Pro 2000-MR and Hodgdon Superformance.
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 2015 | <<locked>> | 84% | 54,592 psi | 86% | 2871 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 56,478 psi | 89% | 2946 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 56,492 psi | 89% | 2940 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 57,334 psi | 90% | 3002 fps | 100% |
| Accurate 2700 | <<locked>> | 94% | 57,537 psi | 90% | 2953 fps | 97.2% |
| Accurate 4064 | <<locked>> | 92% | 56,521 psi | 89% | 2989 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 57,130 psi | 90% | 3081 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 88% | 57,493 psi | 90% | 3031 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 54,926 psi | 86% | 2972 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,275 psi | 88% | 2976 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 57,392 psi | 90% | 2949 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 57,479 psi | 90% | 3156 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 54,795 psi | 86% | 2995 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 57,551 psi | 90% | 2923 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,492 psi | 87% | 3018 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,534 psi | 85% | 3081 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 96% | 55,970 psi | 88% | 3123 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,725 psi | 61% | 2795 fps | 98.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,584 psi | 68% | 2963 fps | 97.7% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 57,464 psi | 90% | 3045 fps | 99.7% |
| Bofors RP3 | <<locked>> | 92% | 55,463 psi | 87% | 3009 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 55,608 psi | 87% | 2976 fps | 97.1% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,723 psi | 86% | 2910 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 55,883 psi | 88% | 3009 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 54,143 psi | 85% | 3051 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 84% | 56,449 psi | 88% | 2959 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 56,695 psi | 89% | 3028 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 94% | 54,317 psi | 85% | 3045 fps | 97.6% |
| Hodgdon H4350 | <<locked>> | 98% | 54,824 psi | 86% | 3002 fps | 96.3% |
| Hodgdon H4895 | <<locked>> | 86% | 54,317 psi | 85% | 2982 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,821 psi | 80% | 2953 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 53,983 psi | 85% | 3018 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 57,334 psi | 90% | 3117 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,230 psi | 55% | 1834 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 54,781 psi | 86% | 2972 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 56,304 psi | 88% | 2995 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 57,043 psi | 89% | 2995 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 94% | 56,463 psi | 88% | 2966 fps | 97.8% |
| IMR 4198 | <<locked>> | 82% | 57,450 psi | 90% | 2877 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 56,057 psi | 88% | 3005 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 96% | 57,667 psi | 90% | 3012 fps | 97.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,572 psi | 75% | 2910 fps | 98.7% |
| IMR 4895 | <<locked>> | 90% | 56,913 psi | 89% | 3051 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 56,275 psi | 88% | 2976 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 56,623 psi | 89% | 2963 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 57,334 psi | 90% | 3002 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 56,927 psi | 89% | 2953 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 57,682 psi | 90% | 3002 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 56,826 psi | 89% | 3002 fps | 98.9% |
| Lovex S070 | <<locked>> | 98% | 54,302 psi | 85% | 2986 fps | 97.7% |
| Norma 201 | <<locked>> | 88% | 55,869 psi | 88% | 2969 fps | 100% |
| Norma 202 | <<locked>> | 88% | 56,550 psi | 89% | 2969 fps | 100% |
| Norma 203B | <<locked>> | 90% | 54,665 psi | 86% | 3002 fps | 99.9% |
| Norma 204ᴾ | <<locked>> | 100% | 56,884 psi | 89% | 3058 fps | 96.2% |
| Norma URPᴾ | <<locked>> | 100% | 55,840 psi | 88% | 3064 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 90% | 55,448 psi | 87% | 3031 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 54,766 psi | 86% | 3061 fps | 98.5% |
| Ramshot TAC | <<locked>> | 86% | 56,797 psi | 89% | 2995 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 86% | 56,565 psi | 89% | 3018 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 57,450 psi | 90% | 2982 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,795 psi | 56% | 1880 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 55,637 psi | 87% | 2953 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 56,971 psi | 89% | 3009 fps | 98.4% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 56,159 psi | 88% | 3091 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 55,666 psi | 87% | 3123 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 56,739 psi | 89% | 3100 fps | 99.6% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 56,623 psi | 89% | 3133 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 86% | 56,652 psi | 89% | 2949 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 56,521 psi | 89% | 2969 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 55,288 psi | 87% | 3002 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 55,608 psi | 87% | 2976 fps | 97.1% |
| Shooters World Long Rifle | <<locked>> | 98% | 56,826 psi | 89% | 3002 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 88% | 57,334 psi | 90% | 3002 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 57,682 psi | 90% | 3002 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 54,302 psi | 85% | 2986 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 57,377 psi | 90% | 3068 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,143 psi | 86% | 2972 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 55,912 psi | 88% | 2999 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 57,653 psi | 90% | 2907 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 54,433 psi | 85% | 2858 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 57,566 psi | 90% | 2959 fps | 98% |
| Somchem S321 | <<locked>> | 82% | 53,882 psi | 84% | 2953 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 56,840 psi | 89% | 2904 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 54,853 psi | 86% | 2963 fps | 99.9% |
| Somchem S355 | <<locked>> | 94% | 55,579 psi | 87% | 2999 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,241 psi | 79% | 3012 fps | 100% |
| Unknown powder | <<locked>> | 98% | 57,087 psi | 89% | 3074 fps | 99.3% |
| Vihtavuori N130 | <<locked>> | 84% | 56,159 psi | 88% | 2854 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 57,043 psi | 89% | 2884 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 56,347 psi | 88% | 2930 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 56,260 psi | 88% | 2940 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 57,014 psi | 89% | 2979 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,012 psi | 85% | 2989 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 84% | 56,014 psi | 88% | 2982 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 56,246 psi | 88% | 2969 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,259 psi | 85% | 3038 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,540 psi | 67% | 2877 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 55,477 psi | 87% | 2989 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 53,751 psi | 84% | 2979 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,317 psi | 85% | 3045 fps | 97.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,534 psi | 54% | 2782 fps | 98% |
| Winchester StaBALL Match | <<locked>> | 82% | 57,334 psi | 90% | 3028 fps | 100% |
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 2015 | <<locked>> | 80% | 48,008 psi | 75% | 2772 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 52,750 psi | 83% | 2894 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,393 psi | 63% | 2687 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,267 psi | 73% | 2831 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 50,256 psi | 79% | 2835 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 38,203 psi | 60% | 2677 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 34,461 psi | 54% | 2651 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 44,512 psi | 70% | 2805 fps | 99% |
| ADI AR 2208 | <<locked>> | 80% | 37,753 psi | 59% | 2648 fps | 96.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,673 psi | 73% | 2818 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 46,833 psi | 73% | 2802 fps | 100% |
| Alliant Power Pro 2000-MR | 56.7 gr | 80% | 40,393 psi | 63% | 2831 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,289 psi | 58% | 2667 fps | 98.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 53,983 psi | 85% | 2871 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,161 psi | 63% | 2736 fps | 97.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 35,085 psi | 55% | 2677 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,213 psi | 50% | 2625 fps | 96.1% |
| Alliant Reloder-23 | <<locked>> | 94% | 32,024 psi | 50% | 2621 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 37,579 psi | 59% | 2822 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,743 psi | 69% | 2805 fps | 98% |
| Bofors RP3 | <<locked>> | 80% | 36,709 psi | 58% | 2664 fps | 98.2% |
| Bofors RP7 | <<locked>> | 90% | 45,977 psi | 72% | 2808 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,196 psi | 76% | 2805 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,310 psi | 71% | 2835 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,517 psi | 79% | 2992 fps | 99.4% |
| Hodgdon H322 | <<locked>> | 80% | 49,530 psi | 78% | 2858 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 37,710 psi | 59% | 2671 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 88% | 44,034 psi | 69% | 2858 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 96% | 51,503 psi | 81% | 2946 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 44,904 psi | 70% | 2818 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 29,994 psi | 47% | 2507 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,406 psi | 60% | 2730 fps | 98.6% |
| Hodgdon Superformance | 67.9 gr | 92% | 46,064 psi | 72% | 2917 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,121 psi | 41% | 1637 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,813 psi | 62% | 2700 fps | 98.5% |
| IMR 3031 | <<locked>> | 80% | 40,756 psi | 64% | 2743 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,927 psi | 58% | 2621 fps | 96.9% |
| IMR 4166 Enduron | <<locked>> | 86% | 44,295 psi | 69% | 2749 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 54,418 psi | 85% | 2838 fps | 100% |
| IMR 4350 | <<locked>> | 94% | 46,253 psi | 72% | 2835 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 88% | 45,078 psi | 71% | 2792 fps | 95.2% |
| IMR 4831 | <<locked>> | 90% | 34,490 psi | 54% | 2635 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 41,147 psi | 64% | 2766 fps | 98.4% |
| IMR 8208 XBR | <<locked>> | 80% | 46,673 psi | 73% | 2818 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 52,620 psi | 82% | 2900 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 43,497 psi | 68% | 2782 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,469 psi | 70% | 2743 fps | 99% |
| Lovex S062 | <<locked>> | 80% | 39,378 psi | 62% | 2684 fps | 99% |
| Lovex S065 | <<locked>> | 86% | 39,044 psi | 61% | 2674 fps | 95.1% |
| Lovex S070 | <<locked>> | 92% | 44,933 psi | 70% | 2815 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 43,337 psi | 68% | 2756 fps | 99.5% |
| Norma 202 | <<locked>> | 80% | 43,801 psi | 69% | 2766 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,537 psi | 62% | 2723 fps | 98.1% |
| Norma 204 | <<locked>> | 98% | 53,287 psi | 84% | 2999 fps | 95.4% |
| Norma URP | <<locked>> | 86% | 34,983 psi | 55% | 2657 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 39,044 psi | 61% | 2733 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 92% | 41,872 psi | 66% | 2818 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 46,470 psi | 73% | 2818 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,035 psi | 72% | 2841 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,183 psi | 79% | 2864 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,513 psi | 42% | 1680 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,257 psi | 82% | 2904 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 43,787 psi | 69% | 2776 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,308 psi | 66% | 2844 fps | 98.1% |
| ReloadSwiss RS 60 | 55.9 gr | 80% | 34,330 psi | 54% | 2700 fps | 99.1% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 37,086 psi | 58% | 2736 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 39,885 psi | 63% | 2808 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 47,152 psi | 74% | 2799 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,089 psi | 64% | 2700 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 80% | 34,563 psi | 54% | 2608 fps | 97.4% |
| Rottweil R 907 | <<locked>> | 90% | 45,977 psi | 72% | 2808 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 86% | 39,044 psi | 61% | 2674 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,497 psi | 68% | 2782 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,378 psi | 62% | 2684 fps | 99% |
| Shooters World SW4350 | <<locked>> | 92% | 44,933 psi | 70% | 2815 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,752 psi | 56% | 2661 fps | 96.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,614 psi | 70% | 2789 fps | 97.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,004 psi | 67% | 2772 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,933 psi | 70% | 2713 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,318 psi | 58% | 2569 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 43,947 psi | 69% | 2730 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 50,415 psi | 79% | 2897 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,396 psi | 70% | 2710 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,527 psi | 70% | 2789 fps | 98.9% |
| Somchem S355 | <<locked>> | 80% | 35,447 psi | 56% | 2618 fps | 97.4% |
| Somchem S365 | <<locked>> | 82% | 27,340 psi | 43% | 2484 fps | 95.5% |
| Unknown powder | <<locked>> | 86% | 38,174 psi | 60% | 2723 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 49,705 psi | 78% | 2762 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,177 psi | 66% | 2654 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,828 psi | 64% | 2690 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,857 psi | 64% | 2687 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 30,095 psi | 47% | 2461 fps | 97% |
| Vihtavuori N160 | <<locked>> | 84% | 35,868 psi | 56% | 2641 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 48,979 psi | 77% | 2871 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 40,466 psi | 63% | 2703 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 36,172 psi | 57% | 2680 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 92% | 32,242 psi | 51% | 2638 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,950 psi | 47% | 2467 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 50,154 psi | 79% | 2923 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 44,034 psi | 69% | 2858 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,269 psi | 47% | 2641 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 53,301 psi | 84% | 2966 fps | 100% |
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 102 powders for .300 WSM loaded with the .308 | 156gr | Reichenberg HDB Ogival. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,156 fps; across all powders the maximum-charge window runs from 1,834 fps to 3,156 fps. Accurate 4350 gives the best case fill at 100 %, and 102 of the 102 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 156.0 gr projectile in 0.308" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, 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 Power Pro 2000-MR, Hodgdon Superformance rank at the top here: for .300 WSM with the .308 | 156gr | Reichenberg HDB Ogival 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.