Load Specifications
Load data in caliber 7 mm WSM with .283 | 140gr | Rhino Penetrator bullet and 93 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Hodgdon H414.
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.
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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>> | 82% | 56,086 psi | 88% | 2900 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 57,334 psi | 90% | 2976 fps | 98.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 55,434 psi | 87% | 3018 fps | 99.7% |
| Accurate 4064 | <<locked>> | 84% | 56,478 psi | 89% | 2956 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 57,653 psi | 90% | 3071 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 57,740 psi | 90% | 3166 fps | 96.5% |
| ADI AR 2208 | <<locked>> | 86% | 56,478 psi | 89% | 2992 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 54,766 psi | 86% | 3058 fps | 98% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 56,275 psi | 88% | 3110 fps | 97.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 55,999 psi | 88% | 3120 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 57,261 psi | 90% | 3015 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 57,464 psi | 90% | 3035 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 54,607 psi | 86% | 3074 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 55,898 psi | 88% | 3097 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 54,259 psi | 85% | 3045 fps | 98% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 55,303 psi | 87% | 3107 fps | 98.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,170 psi | 82% | 3035 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,382 psi | 71% | 2959 fps | 99.2% |
| Alliant Reloder-26 | <<locked>> | 98% | 56,173 psi | 88% | 3179 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,517 psi | 79% | 3022 fps | 97.3% |
| Bofors RP3 | <<locked>> | 84% | 54,853 psi | 86% | 2979 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 55,303 psi | 87% | 3107 fps | 98.3% |
| Bofors RP7 | <<locked>> | 90% | 57,479 psi | 90% | 3015 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 84% | 55,143 psi | 86% | 2995 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 55,912 psi | 88% | 3068 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 88% | 55,724 psi | 87% | 3028 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 98% | 56,217 psi | 88% | 3048 fps | 96.5% |
| Hodgdon H4831 SC | <<locked>> | 98% | 55,071 psi | 86% | 3031 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 54,998 psi | 86% | 2995 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 56,217 psi | 88% | 3031 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,367 psi | 70% | 2986 fps | 96.5% |
| Hodgdon Superformance | <<locked>> | 90% | 56,376 psi | 88% | 3107 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,419 psi | 57% | 1880 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 56,753 psi | 89% | 2992 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 55,912 psi | 88% | 2972 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 54,853 psi | 86% | 2953 fps | 99.1% |
| IMR 4350 | <<locked>> | 92% | 55,216 psi | 87% | 2999 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 88% | 55,666 psi | 87% | 2989 fps | 99.2% |
| IMR 4831 | <<locked>> | 92% | 54,346 psi | 85% | 3009 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,434 psi | 87% | 3012 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 57,653 psi | 90% | 3038 fps | 97% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,476 psi | 84% | 3077 fps | 96.7% |
| Lovex S060 | <<locked>> | 82% | 57,261 psi | 90% | 2956 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 56,115 psi | 88% | 2966 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 55,738 psi | 87% | 2986 fps | 99.8% |
| Lovex S070 | <<locked>> | 92% | 57,188 psi | 90% | 3028 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,093 psi | 72% | 2861 fps | 98.6% |
| Norma 201 | <<locked>> | 82% | 57,406 psi | 90% | 2976 fps | 100% |
| Norma 203B | <<locked>> | 84% | 56,753 psi | 89% | 3022 fps | 100% |
| Norma 204 | <<locked>> | 92% | 55,999 psi | 88% | 3051 fps | 98.1% |
| Norma MRP | <<locked>> | 98% | 54,694 psi | 86% | 3130 fps | 99.2% |
| Norma URP | <<locked>> | 92% | 56,072 psi | 88% | 3054 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 54,114 psi | 85% | 2995 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,099 psi | 85% | 3097 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 92% | 54,940 psi | 86% | 3054 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,153 psi | 75% | 2963 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,246 psi | 58% | 1929 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 54,940 psi | 86% | 2979 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 55,361 psi | 87% | 3091 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 57,464 psi | 90% | 3094 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 55,898 psi | 88% | 3123 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,338 psi | 69% | 2979 fps | 97.7% |
| Rottweil R 902 | <<locked>> | 82% | 54,592 psi | 86% | 2927 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 54,969 psi | 86% | 2976 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 56,579 psi | 89% | 3028 fps | 97.3% |
| Rottweil R 905 | <<locked>> | 98% | 57,087 psi | 89% | 3087 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 90% | 57,479 psi | 90% | 3015 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 90% | 55,738 psi | 87% | 2986 fps | 99.8% |
| Shooters World Precision | <<locked>> | 84% | 56,115 psi | 88% | 2966 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 57,188 psi | 90% | 3028 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 56,550 psi | 89% | 3038 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 57,276 psi | 90% | 3009 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,782 psi | 87% | 2858 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 55,521 psi | 87% | 2936 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 56,594 psi | 89% | 3084 fps | 98.5% |
| Somchem S355 | <<locked>> | 86% | 54,665 psi | 86% | 2969 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 54,578 psi | 86% | 2959 fps | 96.1% |
| Somchem S365 | <<locked>> | 94% | 55,637 psi | 87% | 3054 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 57,725 psi | 90% | 3061 fps | 99.1% |
| Vihtavuori N135 | <<locked>> | 82% | 54,984 psi | 86% | 2884 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,230 psi | 87% | 2900 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 56,115 psi | 88% | 2946 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 54,752 psi | 86% | 2995 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,301 psi | 84% | 2976 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 84% | 57,101 psi | 89% | 2946 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 57,305 psi | 90% | 3051 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 54,592 psi | 86% | 3061 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 54,969 psi | 86% | 3117 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 54,143 psi | 85% | 2956 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 56,188 psi | 88% | 3071 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 47,326 psi | 74% | 3097 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 57,595 psi | 90% | 3015 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 54,186 psi | 85% | 2999 fps | 97.9% |
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% | 52,605 psi | 82% | 2851 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 50,212 psi | 79% | 2858 fps | 97.9% |
| Accurate 3100 | <<locked>> | 86% | 34,461 psi | 54% | 2612 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 49,864 psi | 78% | 2858 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,218 psi | 60% | 2720 fps | 98.2% |
| Accurate MAGPRO | <<locked>> | 98% | 53,824 psi | 84% | 3100 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 46,920 psi | 74% | 2828 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 44,933 psi | 70% | 2871 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 96% | 49,182 psi | 77% | 2982 fps | 95.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 52,228 psi | 82% | 3058 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,485 psi | 74% | 2854 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,763 psi | 80% | 2930 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,086 psi | 58% | 2726 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,119 psi | 66% | 2858 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 44,744 psi | 70% | 2867 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 42,264 psi | 66% | 2858 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,224 psi | 43% | 2467 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,895 psi | 52% | 2648 fps | 95.1% |
| Alliant Reloder-26 | 58.9 gr | 82% | 31,198 psi | 49% | 2641 fps | 95.3% |
| Bofors RP15 | <<locked>> | 96% | 44,425 psi | 70% | 2904 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 47,805 psi | 75% | 2867 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 42,264 psi | 66% | 2858 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 42,119 psi | 66% | 2733 fps | 96.2% |
| Hodgdon H380 | <<locked>> | 80% | 48,153 psi | 75% | 2877 fps | 99.5% |
| Hodgdon H414 | 54.9 gr | 80% | 40,147 psi | 63% | 2766 fps | 96.2% |
| Hodgdon H4350 | <<locked>> | 80% | 42,844 psi | 67% | 2782 fps | 95.6% |
| Hodgdon H4831 | <<locked>> | 96% | 52,649 psi | 83% | 2989 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 96% | 51,619 psi | 81% | 2972 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,563 psi | 54% | 2615 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 52,518 psi | 82% | 2972 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 41,640 psi | 65% | 2920 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 39,102 psi | 61% | 2772 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,209 psi | 43% | 1680 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 53,345 psi | 84% | 2940 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,327 psi | 77% | 2864 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,605 psi | 81% | 2897 fps | 98.7% |
| IMR 4350 | <<locked>> | 82% | 40,219 psi | 63% | 2713 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,410 psi | 68% | 2762 fps | 97% |
| IMR 4831 | <<locked>> | 80% | 36,608 psi | 57% | 2667 fps | 97.9% |
| IMR 4895 | <<locked>> | 80% | 52,098 psi | 82% | 2959 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 50,995 psi | 80% | 2923 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 98% | 50,125 psi | 79% | 3015 fps | 95.8% |
| Lovex S060 | <<locked>> | 80% | 53,896 psi | 84% | 2904 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 49,588 psi | 78% | 2861 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,017 psi | 64% | 2713 fps | 97.7% |
| Lovex S070 | <<locked>> | 80% | 39,305 psi | 62% | 2694 fps | 96.2% |
| Lovex S071 | <<locked>> | 92% | 35,549 psi | 56% | 2638 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 53,925 psi | 85% | 2927 fps | 100% |
| Norma 203B | <<locked>> | 80% | 50,140 psi | 79% | 2913 fps | 100% |
| Norma 204 | <<locked>> | 86% | 45,716 psi | 72% | 2864 fps | 95.8% |
| Norma MRP | 61.4 gr | 88% | 38,682 psi | 61% | 2808 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 37,927 psi | 59% | 2710 fps | 98% |
| Ramshot Big Game | <<locked>> | 80% | 50,589 psi | 79% | 2940 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 46,804 psi | 73% | 2959 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 36,709 psi | 58% | 2694 fps | 96% |
| Ramshot Magnum | <<locked>> | 96% | 41,640 psi | 65% | 2828 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,818 psi | 44% | 1726 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,167 psi | 75% | 2861 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,773 psi | 70% | 2913 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,869 psi | 59% | 2733 fps | 97.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,825 psi | 58% | 2740 fps | 97.2% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 38,464 psi | 60% | 2831 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 51,300 psi | 80% | 2874 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,136 psi | 71% | 2812 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 46,601 psi | 73% | 2851 fps | 95% |
| Rottweil R 905 | <<locked>> | 90% | 43,743 psi | 69% | 2848 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 42,119 psi | 66% | 2733 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,017 psi | 64% | 2713 fps | 97.7% |
| Shooters World Precision | <<locked>> | 80% | 49,588 psi | 78% | 2861 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,305 psi | 62% | 2694 fps | 96.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,209 psi | 72% | 2867 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 53,664 psi | 84% | 2953 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,340 psi | 73% | 2717 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,190 psi | 63% | 2654 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 43,352 psi | 68% | 2844 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 45,339 psi | 71% | 2812 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 51,155 psi | 80% | 2900 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 34,374 psi | 54% | 2667 fps | 99.6% |
| Somchem S385 | <<locked>> | 86% | 38,928 psi | 61% | 2713 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 80% | 51,793 psi | 81% | 2838 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,909 psi | 81% | 2851 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,352 psi | 68% | 2740 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,334 psi | 62% | 2713 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 92% | 40,959 psi | 64% | 2749 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 50,096 psi | 79% | 2844 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,696 psi | 61% | 2707 fps | 98% |
| Vihtavuori N555 | <<locked>> | 80% | 30,037 psi | 47% | 2546 fps | 96% |
| Vihtavuori N560 | <<locked>> | 96% | 51,256 psi | 80% | 3051 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,363 psi | 60% | 2677 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 40,147 psi | 63% | 2766 fps | 96.2% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,715 psi | 40% | 2493 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 53,896 psi | 84% | 2959 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 43,918 psi | 69% | 2815 fps | 95.5% |
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 99 powders for 7 mm WSM loaded with the .283 | 140gr | Rhino Penetrator. Alliant Reloder-26 delivers the highest muzzle velocity at 3,179 fps; across all powders the maximum-charge window runs from 1,880 fps to 3,179 fps. Accurate 3100 gives the best case fill at 100 %, and 99 of the 99 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.283" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, 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. Alliant Reloder-26, Norma MRP, Hodgdon H414 rank at the top here: for 7 mm WSM with the .283 | 140gr | Rhino Penetrator they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, ADI AR 2225, Baschieri & Pellagri 109 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.