Load Specifications
Bullet Manufacturer:Speer
Bullet Weight:270 gr
Bullet Diameter:0.375"
Bullet Length:<<locked>>
Caliber:37 XC load data
Case Length (l3):3.087"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:139.8 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:30"
Max. allowed Pressure:69,618 psi
Recommended Twist Rate:1:6.0
Load data in caliber 37 XC with .375 | 270gr | Speer Boat-Tail bullet and 226 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate High Country, Alliant Reloder-26 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: 30"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 59,770 psi | 86% | 2867 fps | 100% |
| Accurate 2495 | <<locked>> | 82% | 59,886 psi | 86% | 2871 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 60,597 psi | 87% | 2963 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 60,655 psi | 87% | 2966 fps | 100% |
| Accurate 3100ᴾ | <<locked>> | 100% | 60,089 psi | 86% | 3022 fps | 100% |
| Accurate 3100ᴾ | <<locked>> | 100% | 60,379 psi | 87% | 3025 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 60,278 psi | 87% | 2927 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 60,365 psi | 87% | 2930 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 62,004 psi | 89% | 3064 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 62,279 psi | 89% | 3068 fps | 100% |
| Accurate High Country | <<locked>> | 98% | 61,757 psi | 89% | 3199 fps | 99.8% |
| Accurate High Country | <<locked>> | 98% | 61,815 psi | 89% | 3202 fps | 99.8% |
| Accurate MAGPRO | <<locked>> | 98% | 58,552 psi | 84% | 3140 fps | 98.9% |
| Accurate MAGPRO | <<locked>> | 98% | 58,769 psi | 84% | 3143 fps | 99% |
| ADI APS 450 | <<locked>> | 84% | 62,729 psi | 90% | 2316 fps | 100% |
| ADI APS 450 | <<locked>> | 84% | 62,714 psi | 90% | 2316 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 62,178 psi | 89% | 3012 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 62,265 psi | 89% | 3015 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 59,741 psi | 86% | 2972 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 59,828 psi | 86% | 2972 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 62,758 psi | 90% | 3127 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 62,975 psi | 90% | 3130 fps | 100% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 60,321 psi | 87% | 3136 fps | 99.6% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 60,510 psi | 87% | 3140 fps | 99.6% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 44,048 psi | 63% | 2848 fps | 97.4% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 44,106 psi | 63% | 2851 fps | 97.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,972 psi | 56% | 2815 fps | 99% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,102 psi | 56% | 2818 fps | 99% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 60,205 psi | 86% | 3110 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 60,307 psi | 87% | 3114 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 62,787 psi | 90% | 3120 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 62,787 psi | 90% | 3120 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 59,016 psi | 85% | 3071 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 60,887 psi | 87% | 2989 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 61,119 psi | 88% | 2995 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 61,177 psi | 88% | 3018 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 61,264 psi | 88% | 3022 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 62,497 psi | 90% | 3114 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 62,758 psi | 90% | 3120 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 60,336 psi | 87% | 3087 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 60,481 psi | 87% | 3091 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 61,873 psi | 89% | 3114 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 62,149 psi | 89% | 3117 fps | 100% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 59,683 psi | 86% | 3127 fps | 100% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 59,915 psi | 86% | 3133 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 56,579 psi | 81% | 3031 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 56,869 psi | 82% | 3035 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,023 psi | 70% | 2992 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,081 psi | 71% | 2992 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 98% | 61,815 psi | 89% | 3192 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 98% | 61,946 psi | 89% | 3196 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 62,700 psi | 90% | 3041 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 62,772 psi | 90% | 3041 fps | 100% |
| Baschieri & Pellagri 109ᴾ | <<locked>> | 100% | 58,827 psi | 85% | 3035 fps | 97.3% |
| Baschieri & Pellagri 109ᴾ | <<locked>> | 100% | 58,856 psi | 85% | 3035 fps | 97.3% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,781 psi | 79% | 3054 fps | 99.7% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,839 psi | 79% | 3058 fps | 99.7% |
| Bofors RP3 | <<locked>> | 86% | 62,366 psi | 90% | 3012 fps | 100% |
| Bofors RP3 | <<locked>> | 86% | 62,439 psi | 90% | 3012 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,904 psi | 65% | 2923 fps | 98.2% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,136 psi | 65% | 2930 fps | 98.2% |
| Bofors RP5ᴾ | <<locked>> | 100% | 59,683 psi | 86% | 3127 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 59,915 psi | 86% | 3133 fps | 100% |
| Bofors RP7 | <<locked>> | 90% | 61,090 psi | 88% | 3015 fps | 100% |
| Bofors RP7 | <<locked>> | 90% | 61,148 psi | 88% | 3015 fps | 100% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,443 psi | 70% | 2936 fps | 98.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,631 psi | 70% | 2940 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 86% | 62,424 psi | 90% | 3038 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 62,671 psi | 90% | 3041 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 59,886 psi | 86% | 3071 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 60,118 psi | 86% | 3074 fps | 100% |
| Hodgdon H4350 | <<locked>> | 88% | 59,190 psi | 85% | 3028 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 88% | 59,248 psi | 85% | 3028 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 98% | 60,553 psi | 87% | 3071 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 98% | 60,640 psi | 87% | 3074 fps | 99.2% |
| Hodgdon H4831 SC | <<locked>> | 98% | 59,161 psi | 85% | 3051 fps | 99.1% |
| Hodgdon H4831 SC | <<locked>> | 98% | 59,350 psi | 85% | 3054 fps | 99.1% |
| Hodgdon H4895 | <<locked>> | 82% | 62,903 psi | 90% | 3018 fps | 100% |
| Hodgdon H4895 | <<locked>> | 82% | 62,990 psi | 90% | 3022 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 62,859 psi | 90% | 3025 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 59,219 psi | 85% | 2979 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 59,973 psi | 86% | 3012 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 60,263 psi | 87% | 3015 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,964 psi | 69% | 3051 fps | 99.7% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,196 psi | 69% | 3054 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 90% | 60,959 psi | 88% | 3117 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 61,017 psi | 88% | 3120 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,724 psi | 53% | 1834 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,738 psi | 53% | 1837 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 60,104 psi | 86% | 2969 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 60,191 psi | 86% | 2972 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 62,961 psi | 90% | 2999 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 59,292 psi | 85% | 2953 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 61,714 psi | 89% | 2995 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 61,786 psi | 89% | 2999 fps | 100% |
| IMR 4350 | <<locked>> | 94% | 62,352 psi | 90% | 3048 fps | 100% |
| IMR 4350 | <<locked>> | 94% | 62,598 psi | 90% | 3051 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 90% | 62,526 psi | 90% | 3035 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 90% | 62,801 psi | 90% | 3038 fps | 100% |
| IMR 4831 | <<locked>> | 94% | 62,047 psi | 89% | 3048 fps | 100% |
| IMR 4831 | <<locked>> | 94% | 62,163 psi | 89% | 3051 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 62,787 psi | 90% | 3045 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 62,874 psi | 90% | 3048 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 61,453 psi | 88% | 3048 fps | 99.3% |
| IMR 4955 Enduron | <<locked>> | 98% | 61,641 psi | 89% | 3051 fps | 99.4% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 57,769 psi | 83% | 3110 fps | 99.4% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 57,957 psi | 83% | 3114 fps | 99.5% |
| Lovex S060 | <<locked>> | 82% | 60,336 psi | 87% | 2927 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 60,437 psi | 87% | 2930 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 59,524 psi | 86% | 2940 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 59,611 psi | 86% | 2943 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 59,190 psi | 85% | 2976 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 59,422 psi | 85% | 2982 fps | 100% |
| Lovex S070 | <<locked>> | 92% | 60,945 psi | 88% | 3028 fps | 100% |
| Lovex S070 | <<locked>> | 92% | 61,003 psi | 88% | 3028 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,922 psi | 72% | 2881 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,140 psi | 72% | 2887 fps | 100% |
| Norma 201 | <<locked>> | 82% | 60,742 psi | 87% | 2949 fps | 100% |
| Norma 201 | <<locked>> | 82% | 60,843 psi | 87% | 2953 fps | 100% |
| Norma 202 | <<locked>> | 82% | 61,569 psi | 88% | 2936 fps | 100% |
| Norma 202 | <<locked>> | 82% | 61,670 psi | 89% | 2940 fps | 100% |
| Norma 203B | <<locked>> | 84% | 60,452 psi | 87% | 3005 fps | 100% |
| Norma 203B | <<locked>> | 84% | 60,539 psi | 87% | 3005 fps | 100% |
| Norma 204 | <<locked>> | 92% | 59,828 psi | 86% | 3061 fps | 99.8% |
| Norma 204 | <<locked>> | 92% | 60,104 psi | 86% | 3064 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 34,461 psi | 50% | 2736 fps | 97.2% |
| Norma 217ᴾ | <<locked>> | 100% | 34,548 psi | 50% | 2740 fps | 97.2% |
| Norma MRP | <<locked>> | 98% | 59,756 psi | 86% | 3156 fps | 100% |
| Norma MRP | <<locked>> | 98% | 59,843 psi | 86% | 3156 fps | 100% |
| Norma URP | <<locked>> | 92% | 60,104 psi | 86% | 3048 fps | 100% |
| Norma URP | <<locked>> | 92% | 60,191 psi | 86% | 3048 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 61,743 psi | 89% | 3031 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 61,830 psi | 89% | 3035 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 58,726 psi | 84% | 3130 fps | 99.7% |
| Ramshot Grandᴾ | <<locked>> | 100% | 58,769 psi | 84% | 3133 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 94% | 62,990 psi | 90% | 3110 fps | 100% |
| Ramshot Hunter | <<locked>> | 92% | 59,132 psi | 85% | 3061 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,547 psi | 75% | 3002 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,794 psi | 76% | 3005 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,536 psi | 54% | 1880 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,434 psi | 54% | 1880 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 62,250 psi | 89% | 3025 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 62,308 psi | 90% | 3028 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 62,888 psi | 90% | 3094 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 59,770 psi | 86% | 3074 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 59,857 psi | 86% | 3074 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 62,004 psi | 89% | 3091 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 62,236 psi | 89% | 3094 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 60,292 psi | 87% | 3127 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 60,510 psi | 87% | 3130 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,240 psi | 69% | 3048 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,414 psi | 70% | 3051 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 43,279 psi | 62% | 2920 fps | 96.3% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 43,468 psi | 62% | 2927 fps | 96.3% |
| Rottweil R 902 | <<locked>> | 84% | 61,322 psi | 88% | 2946 fps | 100% |
| Rottweil R 902 | <<locked>> | 84% | 61,627 psi | 89% | 2953 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 62,352 psi | 90% | 3005 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 62,424 psi | 90% | 3005 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 60,205 psi | 86% | 3035 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 96% | 60,408 psi | 87% | 3041 fps | 99.5% |
| Rottweil R 905 | <<locked>> | 98% | 61,467 psi | 88% | 3100 fps | 100% |
| Rottweil R 905 | <<locked>> | 98% | 61,540 psi | 88% | 3104 fps | 100% |
| Rottweil R 907 | <<locked>> | 90% | 61,090 psi | 88% | 3015 fps | 100% |
| Rottweil R 907 | <<locked>> | 90% | 61,148 psi | 88% | 3015 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 90% | 59,190 psi | 85% | 2976 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 90% | 59,422 psi | 85% | 2982 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 59,524 psi | 86% | 2940 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 59,611 psi | 86% | 2943 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 60,945 psi | 88% | 3028 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 61,003 psi | 88% | 3028 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 60,133 psi | 86% | 3018 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 60,263 psi | 87% | 3022 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 60,568 psi | 87% | 2986 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 60,655 psi | 87% | 2986 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 61,046 psi | 88% | 2861 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 61,148 psi | 88% | 2864 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 62,482 psi | 90% | 2864 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 62,569 psi | 90% | 2864 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 62,917 psi | 90% | 2982 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 62,990 psi | 90% | 2986 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 60,974 psi | 88% | 3097 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 61,032 psi | 88% | 3097 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 60,901 psi | 87% | 2861 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 60,988 psi | 88% | 2861 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 61,859 psi | 89% | 2999 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 61,946 psi | 89% | 2999 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 62,439 psi | 90% | 3028 fps | 99.3% |
| Somchem S361 | <<locked>> | 96% | 62,468 psi | 90% | 3031 fps | 99.3% |
| Somchem S365 | <<locked>> | 94% | 60,118 psi | 86% | 3041 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 60,408 psi | 87% | 3045 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 61,960 psi | 89% | 3068 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 62,192 psi | 89% | 3071 fps | 100% |
| Vihtavuori N133 | <<locked>> | 82% | 61,583 psi | 88% | 2835 fps | 100% |
| Vihtavuori N133 | <<locked>> | 82% | 61,699 psi | 89% | 2838 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 62,120 psi | 89% | 2890 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 62,236 psi | 89% | 2894 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 62,178 psi | 89% | 2910 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 62,265 psi | 89% | 2913 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 59,582 psi | 86% | 2920 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 59,654 psi | 86% | 2920 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 62,265 psi | 89% | 3031 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 62,497 psi | 90% | 3035 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 57,522 psi | 83% | 2992 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 57,711 psi | 83% | 2995 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 84% | 60,249 psi | 87% | 2917 fps | 100% |
| Vihtavuori N540 | <<locked>> | 84% | 60,524 psi | 87% | 2920 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 61,322 psi | 88% | 3045 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 61,395 psi | 88% | 3048 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 59,263 psi | 85% | 3061 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 59,350 psi | 85% | 3064 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 59,712 psi | 86% | 3153 fps | 99.4% |
| Vihtavuori N560 | <<locked>> | 98% | 59,756 psi | 86% | 3156 fps | 99.4% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,358 psi | 74% | 3009 fps | 98.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,532 psi | 74% | 3012 fps | 98.6% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 44,802 psi | 64% | 2936 fps | 96% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 44,817 psi | 64% | 2936 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 62,308 psi | 90% | 2989 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 62,366 psi | 90% | 2992 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 60,060 psi | 86% | 3074 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 60,321 psi | 87% | 3077 fps | 100% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,113 psi | 76% | 3120 fps | 100% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,432 psi | 77% | 3123 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 61,017 psi | 88% | 2992 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 61,308 psi | 88% | 2995 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 62,613 psi | 90% | 3071 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 62,830 psi | 90% | 3071 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 30"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 56,144 psi | 81% | 2822 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 56,246 psi | 81% | 2825 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 53,200 psi | 76% | 2858 fps | 99.7% |
| Accurate 2700 | <<locked>> | 80% | 53,272 psi | 77% | 2861 fps | 99.7% |
| Accurate 3100 | <<locked>> | 80% | 30,443 psi | 44% | 2490 fps | 96.9% |
| Accurate 3100 | <<locked>> | 80% | 30,516 psi | 44% | 2493 fps | 96.9% |
| Accurate 4064 | <<locked>> | 80% | 53,243 psi | 76% | 2838 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 53,359 psi | 77% | 2838 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,191 psi | 59% | 2746 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,292 psi | 59% | 2749 fps | 100% |
| Accurate High Country | 99.6 gr | 84% | 37,753 psi | 54% | 2772 fps | 95.7% |
| Accurate High Country | 99.6 gr | 84% | 37,826 psi | 54% | 2776 fps | 95.8% |
| Accurate MAGPRO | <<locked>> | 88% | 41,075 psi | 59% | 2831 fps | 95.3% |
| Accurate MAGPRO | <<locked>> | 88% | 41,133 psi | 59% | 2831 fps | 95.3% |
| ADI APS 450 | <<locked>> | 80% | 58,624 psi | 84% | 2257 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 58,624 psi | 84% | 2260 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 58,349 psi | 84% | 2963 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 58,436 psi | 84% | 2966 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 49,661 psi | 71% | 2825 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 49,763 psi | 71% | 2828 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 34,664 psi | 50% | 2618 fps | 95.4% |
| ADI AR 2209 | <<locked>> | 80% | 34,737 psi | 50% | 2621 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 86% | 37,739 psi | 54% | 2720 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 86% | 37,797 psi | 54% | 2720 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 96% | 38,609 psi | 55% | 2730 fps | 95.6% |
| ADI AR 2217 | <<locked>> | 96% | 38,624 psi | 55% | 2730 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 92% | 30,240 psi | 43% | 2572 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 92% | 30,298 psi | 44% | 2575 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 55,869 psi | 80% | 3054 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 56,173 psi | 81% | 3058 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 34,896 psi | 50% | 2621 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 34,896 psi | 50% | 2621 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 34,969 psi | 50% | 2625 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,444 psi | 72% | 2848 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,546 psi | 73% | 2848 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 53,795 psi | 77% | 2917 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 53,925 psi | 77% | 2920 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,755 psi | 57% | 2759 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,842 psi | 57% | 2759 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,469 psi | 65% | 2874 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,614 psi | 66% | 2877 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 34,577 psi | 50% | 2615 fps | 95.5% |
| Alliant Reloder-19 | <<locked>> | 80% | 34,650 psi | 50% | 2618 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 84% | 34,911 psi | 50% | 2671 fps | 95.9% |
| Alliant Reloder-22 | <<locked>> | 82% | 32,692 psi | 47% | 2615 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,385 psi | 42% | 2526 fps | 99.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,457 psi | 42% | 2530 fps | 99.5% |
| Alliant Reloder-25 | <<locked>> | 80% | 25,773 psi | 37% | 2425 fps | 95% |
| Alliant Reloder-25 | <<locked>> | 80% | 25,831 psi | 37% | 2428 fps | 95.1% |
| Alliant Reloder-26 | 97.7 gr | 80% | 31,575 psi | 45% | 2654 fps | 98.7% |
| Alliant Reloder-26 | 97.7 gr | 80% | 31,633 psi | 45% | 2657 fps | 98.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 58,595 psi | 84% | 2986 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 58,668 psi | 84% | 2989 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 48,849 psi | 70% | 2864 fps | 95% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 48,878 psi | 70% | 2867 fps | 95.1% |
| Bofors RP15 | <<locked>> | 86% | 34,664 psi | 50% | 2664 fps | 95.6% |
| Bofors RP15 | <<locked>> | 86% | 34,722 psi | 50% | 2667 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 51,140 psi | 73% | 2861 fps | 100% |
| Bofors RP3 | <<locked>> | 80% | 51,256 psi | 74% | 2864 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 36,753 psi | 53% | 2749 fps | 95.8% |
| Bofors RP30 | <<locked>> | 92% | 34,548 psi | 50% | 2697 fps | 95% |
| Bofors RP5 | <<locked>> | 84% | 34,911 psi | 50% | 2671 fps | 95.9% |
| Bofors RP5 | <<locked>> | 82% | 32,692 psi | 47% | 2615 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 44,599 psi | 64% | 2749 fps | 98.9% |
| Bofors RP7 | <<locked>> | 80% | 44,686 psi | 64% | 2753 fps | 98.9% |
| Hodgdon H1000 | <<locked>> | 92% | 37,043 psi | 53% | 2697 fps | 95.8% |
| Hodgdon H1000 | <<locked>> | 92% | 37,101 psi | 53% | 2700 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 51,372 psi | 74% | 2884 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 51,459 psi | 74% | 2884 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 43,004 psi | 62% | 2795 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 80% | 43,091 psi | 62% | 2799 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 80% | 45,745 psi | 66% | 2808 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 80% | 45,832 psi | 66% | 2812 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 86% | 40,234 psi | 58% | 2726 fps | 95.3% |
| Hodgdon H4831 | <<locked>> | 86% | 40,292 psi | 58% | 2726 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 86% | 39,566 psi | 57% | 2710 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 86% | 39,624 psi | 57% | 2713 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 59,016 psi | 85% | 2969 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 59,117 psi | 85% | 2972 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,362 psi | 54% | 2641 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,463 psi | 54% | 2644 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 56,231 psi | 81% | 2963 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 56,318 psi | 81% | 2963 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 32,460 psi | 47% | 2674 fps | 95.2% |
| Hodgdon Retumbo | <<locked>> | 88% | 32,605 psi | 47% | 2680 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 42,047 psi | 60% | 2815 fps | 98.9% |
| Hodgdon Superformance | <<locked>> | 80% | 42,119 psi | 61% | 2818 fps | 98.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,514 psi | 40% | 1644 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,441 psi | 39% | 1644 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 56,362 psi | 81% | 2920 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 56,463 psi | 81% | 2920 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,272 psi | 75% | 2854 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,373 psi | 75% | 2858 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 54,375 psi | 78% | 2890 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 54,476 psi | 78% | 2894 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,161 psi | 58% | 2684 fps | 98.2% |
| IMR 4350 | <<locked>> | 80% | 40,248 psi | 58% | 2684 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,948 psi | 66% | 2779 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,050 psi | 66% | 2782 fps | 99.4% |
| IMR 4831 | <<locked>> | 80% | 39,378 psi | 57% | 2694 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 39,479 psi | 57% | 2697 fps | 99.9% |
| IMR 4895 | <<locked>> | 80% | 55,187 psi | 79% | 2946 fps | 100% |
| IMR 4895 | <<locked>> | 80% | 55,288 psi | 79% | 2946 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 39,595 psi | 57% | 2674 fps | 95.2% |
| IMR 4955 Enduron | <<locked>> | 84% | 39,755 psi | 57% | 2677 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 88% | 38,566 psi | 55% | 2753 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 88% | 38,740 psi | 56% | 2759 fps | 95.6% |
| Lovex S060 | <<locked>> | 80% | 56,797 psi | 82% | 2881 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 56,898 psi | 82% | 2884 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 52,649 psi | 76% | 2848 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 52,750 psi | 76% | 2848 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,642 psi | 63% | 2730 fps | 99.7% |
| Lovex S065 | <<locked>> | 80% | 43,729 psi | 63% | 2733 fps | 99.7% |
| Lovex S070 | <<locked>> | 80% | 41,800 psi | 60% | 2717 fps | 99% |
| Lovex S070 | <<locked>> | 80% | 41,887 psi | 60% | 2720 fps | 99% |
| Lovex S071 | <<locked>> | 80% | 26,252 psi | 38% | 2372 fps | 95% |
| Lovex S071 | <<locked>> | 80% | 26,339 psi | 38% | 2375 fps | 95% |
| Norma 201 | <<locked>> | 80% | 57,101 psi | 82% | 2900 fps | 100% |
| Norma 201 | <<locked>> | 80% | 57,203 psi | 82% | 2904 fps | 100% |
| Norma 202 | <<locked>> | 80% | 57,754 psi | 83% | 2890 fps | 100% |
| Norma 202 | <<locked>> | 80% | 57,856 psi | 83% | 2894 fps | 100% |
| Norma 203B | <<locked>> | 80% | 53,185 psi | 76% | 2904 fps | 100% |
| Norma 203B | <<locked>> | 80% | 53,287 psi | 77% | 2907 fps | 100% |
| Norma 204 | <<locked>> | 80% | 39,856 psi | 57% | 2717 fps | 97% |
| Norma 204 | <<locked>> | 80% | 39,943 psi | 57% | 2720 fps | 97.1% |
| Norma 217 | <<locked>> | 96% | 30,298 psi | 44% | 2618 fps | 95.2% |
| Norma 217 | <<locked>> | 96% | 30,429 psi | 44% | 2621 fps | 95.3% |
| Norma MRP | <<locked>> | 80% | 31,778 psi | 46% | 2621 fps | 96.2% |
| Norma MRP | <<locked>> | 80% | 31,850 psi | 46% | 2625 fps | 96.3% |
| Norma URP | <<locked>> | 80% | 40,654 psi | 58% | 2736 fps | 99.9% |
| Norma URP | <<locked>> | 80% | 40,741 psi | 59% | 2740 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 80% | 53,853 psi | 77% | 2930 fps | 100% |
| Ramshot Big Game | <<locked>> | 80% | 54,114 psi | 78% | 2933 fps | 100% |
| Ramshot Grand | <<locked>> | 88% | 38,189 psi | 55% | 2756 fps | 95.8% |
| Ramshot Grand | <<locked>> | 88% | 38,247 psi | 55% | 2759 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 39,537 psi | 57% | 2733 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 80% | 39,624 psi | 57% | 2733 fps | 99.1% |
| Ramshot Magnum | <<locked>> | 86% | 31,589 psi | 45% | 2572 fps | 95.3% |
| Ramshot Magnum | <<locked>> | 86% | 31,720 psi | 46% | 2579 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,079 psi | 40% | 1683 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,007 psi | 40% | 1683 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,227 psi | 74% | 2867 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,300 psi | 74% | 2871 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 58,842 psi | 85% | 3041 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,269 psi | 69% | 2917 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,385 psi | 70% | 2920 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,060 psi | 59% | 2769 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,147 psi | 59% | 2769 fps | 99.9% |
| ReloadSwiss RS 70 | 96.9 gr | 80% | 39,465 psi | 57% | 2782 fps | 99.8% |
| ReloadSwiss RS 70 | 96.9 gr | 80% | 39,639 psi | 57% | 2789 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 31,647 psi | 45% | 2651 fps | 96.2% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 29,631 psi | 43% | 2589 fps | 95% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 40,277 psi | 58% | 2858 fps | 95.2% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 40,350 psi | 58% | 2861 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 54,418 psi | 78% | 2854 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 54,534 psi | 78% | 2858 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 48,167 psi | 69% | 2812 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 48,269 psi | 69% | 2812 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 38,522 psi | 55% | 2657 fps | 95.5% |
| Rottweil R 904 | <<locked>> | 82% | 38,595 psi | 55% | 2657 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 80% | 33,692 psi | 48% | 2598 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 80% | 33,779 psi | 49% | 2602 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 44,599 psi | 64% | 2749 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 80% | 44,686 psi | 64% | 2753 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,642 psi | 63% | 2730 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,729 psi | 63% | 2733 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 52,649 psi | 76% | 2848 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 52,750 psi | 76% | 2848 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,800 psi | 60% | 2717 fps | 99% |
| Shooters World SW4350 | <<locked>> | 80% | 41,887 psi | 60% | 2720 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,443 psi | 71% | 2867 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,530 psi | 71% | 2871 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 56,869 psi | 82% | 2936 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 57,000 psi | 82% | 2940 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 57,493 psi | 83% | 2818 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 57,580 psi | 83% | 2818 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,892 psi | 70% | 2690 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,994 psi | 70% | 2694 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,627 psi | 61% | 2674 fps | 99% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,699 psi | 61% | 2677 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 33,373 psi | 48% | 2592 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 33,460 psi | 48% | 2595 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 57,377 psi | 82% | 2815 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 57,464 psi | 83% | 2818 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 48,327 psi | 69% | 2808 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 48,414 psi | 70% | 2812 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 41,916 psi | 60% | 2697 fps | 95.7% |
| Somchem S361 | <<locked>> | 84% | 41,959 psi | 60% | 2700 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 37,289 psi | 54% | 2694 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 37,391 psi | 54% | 2694 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,345 psi | 49% | 2585 fps | 96.6% |
| Somchem S385 | <<locked>> | 80% | 34,418 psi | 49% | 2585 fps | 96.6% |
| Vihtavuori N133 | <<locked>> | 80% | 58,073 psi | 83% | 2795 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 58,189 psi | 84% | 2795 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 54,882 psi | 79% | 2805 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 55,013 psi | 79% | 2808 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 54,882 psi | 79% | 2822 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 54,969 psi | 79% | 2825 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 46,093 psi | 66% | 2730 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 46,180 psi | 66% | 2733 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,090 psi | 60% | 2730 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,177 psi | 61% | 2733 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 31,691 psi | 46% | 2510 fps | 95.1% |
| Vihtavuori N165 | <<locked>> | 82% | 31,792 psi | 46% | 2513 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 53,156 psi | 76% | 2825 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 53,243 psi | 76% | 2825 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,539 psi | 60% | 2736 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 80% | 41,626 psi | 60% | 2740 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 32,692 psi | 47% | 2598 fps | 99.3% |
| Vihtavuori N555 | <<locked>> | 80% | 32,866 psi | 47% | 2605 fps | 99.4% |
| Vihtavuori N560 | <<locked>> | 86% | 39,508 psi | 57% | 2792 fps | 95.4% |
| Vihtavuori N560 | <<locked>> | 86% | 39,566 psi | 57% | 2792 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 92% | 39,044 psi | 56% | 2772 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 92% | 39,117 psi | 56% | 2776 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 98% | 41,727 psi | 60% | 2871 fps | 95% |
| Vihtavuori N568 | <<locked>> | 98% | 41,814 psi | 60% | 2874 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,075 psi | 59% | 2690 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,176 psi | 59% | 2694 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,120 psi | 62% | 2799 fps | 99.2% |
| Winchester 760 | <<locked>> | 80% | 43,207 psi | 62% | 2802 fps | 99.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,005 psi | 37% | 2533 fps | 99.5% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,063 psi | 37% | 2536 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 57,276 psi | 82% | 2943 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 80% | 57,363 psi | 82% | 2946 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 82% | 33,475 psi | 48% | 2562 fps | 95.1% |
| Winchester Supreme 780 | <<locked>> | 82% | 33,562 psi | 48% | 2562 fps | 95.2% |
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 226 powders for 37 XC loaded with the .375 | 270gr | Speer Boat-Tail. Accurate High Country delivers the highest muzzle velocity at 3,202 fps; across all powders the maximum-charge window runs from 1,834 fps to 3,202 fps. Accurate 3100 gives the best case fill at 100 %, and 226 of the 226 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (480 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. The 270.0 gr projectile in 0.375" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 3100, ADI AR 2213 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. Accurate High Country, Alliant Reloder-26, ReloadSwiss RS 70 rank at the top here: for 37 XC with the .375 | 270gr | Speer Boat-Tail 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.