Load Specifications
Load data in caliber 7 mm WSM with .284 | 140gr | Sierra GameKing bullet and 92 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Ramshot Grand and Norma MRP.
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 2700 | <<locked>> | 86% | 54,955 psi | 86% | 2927 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 55,376 psi | 87% | 3015 fps | 99.7% |
| Accurate 4064 | <<locked>> | 84% | 56,420 psi | 88% | 2956 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 57,566 psi | 90% | 3071 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 56,376 psi | 88% | 2992 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 54,694 psi | 86% | 3058 fps | 98% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 55,927 psi | 88% | 3107 fps | 97.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 55,898 psi | 88% | 3120 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 57,145 psi | 90% | 3012 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 57,348 psi | 90% | 3035 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 54,505 psi | 85% | 3074 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 55,796 psi | 87% | 3097 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 57,740 psi | 90% | 3104 fps | 98.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 54,940 psi | 86% | 3100 fps | 98.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,098 psi | 82% | 3035 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,281 psi | 71% | 2956 fps | 99.2% |
| Alliant Reloder-26 | <<locked>> | 98% | 56,115 psi | 88% | 3182 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,459 psi | 79% | 3022 fps | 97.3% |
| Bofors RP3 | <<locked>> | 84% | 54,737 psi | 86% | 2982 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 54,940 psi | 86% | 3100 fps | 98.3% |
| Bofors RP7 | <<locked>> | 90% | 57,377 psi | 90% | 3018 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 84% | 55,042 psi | 86% | 2995 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 57,174 psi | 90% | 3087 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 92% | 57,246 psi | 90% | 3051 fps | 98.6% |
| Hodgdon H4831 SC | <<locked>> | 98% | 55,013 psi | 86% | 3031 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 54,911 psi | 86% | 2995 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 56,623 psi | 89% | 3035 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,324 psi | 69% | 2986 fps | 96.5% |
| Hodgdon Superformance | <<locked>> | 90% | 56,304 psi | 88% | 3107 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,492 psi | 57% | 1883 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 55,883 psi | 88% | 2979 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 55,216 psi | 87% | 2949 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 55,288 psi | 87% | 2966 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,392 psi | 90% | 2995 fps | 99.4% |
| IMR 4350 | <<locked>> | 92% | 54,926 psi | 86% | 2995 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 88% | 55,579 psi | 87% | 2989 fps | 99.1% |
| IMR 4831 | <<locked>> | 96% | 55,056 psi | 86% | 3018 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,317 psi | 87% | 3012 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 57,595 psi | 90% | 3038 fps | 96.9% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 57,624 psi | 90% | 3150 fps | 97.5% |
| Lovex S060 | <<locked>> | 82% | 57,174 psi | 90% | 2956 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 55,999 psi | 88% | 2966 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 55,651 psi | 87% | 2986 fps | 99.8% |
| Lovex S070 | <<locked>> | 92% | 57,101 psi | 89% | 3028 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,006 psi | 72% | 2861 fps | 98.6% |
| Norma 201 | <<locked>> | 82% | 57,276 psi | 90% | 2976 fps | 100% |
| Norma 203B | <<locked>> | 84% | 56,637 psi | 89% | 3022 fps | 100% |
| Norma 204 | <<locked>> | 92% | 55,854 psi | 88% | 3051 fps | 98.1% |
| Norma MRP | <<locked>> | 98% | 54,621 psi | 86% | 3130 fps | 99.2% |
| Norma URP | <<locked>> | 92% | 55,970 psi | 88% | 3051 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 54,012 psi | 85% | 2995 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 53,505 psi | 84% | 3087 fps | 97.1% |
| Ramshot Hunter | <<locked>> | 92% | 54,868 psi | 86% | 3054 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,389 psi | 85% | 3071 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,101 psi | 58% | 1926 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 54,853 psi | 86% | 2976 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 55,259 psi | 87% | 3091 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 57,377 psi | 90% | 3094 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 55,840 psi | 88% | 3123 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,324 psi | 69% | 2979 fps | 97.7% |
| Rottweil R 902 | <<locked>> | 82% | 54,476 psi | 85% | 2927 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 54,868 psi | 86% | 2976 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 56,217 psi | 88% | 3025 fps | 97.2% |
| Rottweil R 905 | <<locked>> | 98% | 57,014 psi | 89% | 3091 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 90% | 57,377 psi | 90% | 3018 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 90% | 55,651 psi | 87% | 2986 fps | 99.8% |
| Shooters World Precision | <<locked>> | 84% | 55,999 psi | 88% | 2966 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 57,101 psi | 89% | 3028 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 56,449 psi | 88% | 3038 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 57,159 psi | 90% | 3005 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,680 psi | 87% | 2858 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 55,477 psi | 87% | 2936 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 56,521 psi | 89% | 3084 fps | 98.5% |
| Somchem S335 | <<locked>> | 82% | 57,667 psi | 90% | 2897 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 54,563 psi | 86% | 2969 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 54,534 psi | 85% | 2959 fps | 96.1% |
| Somchem S365 | <<locked>> | 94% | 55,550 psi | 87% | 3054 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 57,667 psi | 90% | 3064 fps | 99.1% |
| Unknown powder | <<locked>> | 90% | 56,420 psi | 88% | 3054 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 54,868 psi | 86% | 2884 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,114 psi | 86% | 2897 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 56,014 psi | 88% | 2943 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 54,360 psi | 85% | 2989 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,214 psi | 83% | 2976 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 84% | 57,014 psi | 89% | 2946 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 57,232 psi | 90% | 3051 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 54,505 psi | 85% | 3061 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 54,853 psi | 86% | 3117 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 54,041 psi | 85% | 2956 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 57,174 psi | 90% | 3087 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 47,152 psi | 74% | 3097 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,796 psi | 87% | 3025 fps | 98.1% |
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 2700 | <<locked>> | 80% | 45,121 psi | 71% | 2753 fps | 96.8% |
| Accurate 3100 | <<locked>> | 86% | 34,374 psi | 54% | 2608 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 49,734 psi | 78% | 2858 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,116 psi | 60% | 2717 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 80% | 46,804 psi | 73% | 2828 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 44,860 psi | 70% | 2874 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 96% | 48,863 psi | 77% | 2976 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 52,127 psi | 82% | 3058 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,398 psi | 74% | 2854 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,647 psi | 79% | 2927 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,028 psi | 58% | 2726 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,076 psi | 66% | 2858 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 44,440 psi | 70% | 2864 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 42,192 psi | 66% | 2858 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,151 psi | 43% | 2467 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,837 psi | 51% | 2648 fps | 95.1% |
| Alliant Reloder-26 | 58.8 gr | 82% | 31,125 psi | 49% | 2641 fps | 95.2% |
| Bofors RP15 | <<locked>> | 96% | 44,324 psi | 69% | 2904 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 47,950 psi | 75% | 2871 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 42,192 psi | 66% | 2858 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 42,032 psi | 66% | 2733 fps | 96.2% |
| Hodgdon H380 | <<locked>> | 80% | 48,066 psi | 75% | 2877 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 43,555 psi | 68% | 2841 fps | 97.2% |
| Hodgdon H4350 | <<locked>> | 82% | 41,945 psi | 66% | 2766 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 51,285 psi | 80% | 2966 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,476 psi | 54% | 2615 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,458 psi | 78% | 2923 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 41,408 psi | 65% | 2913 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 39,030 psi | 61% | 2772 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,267 psi | 43% | 1683 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,284 psi | 77% | 2874 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 51,982 psi | 81% | 2904 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,992 psi | 72% | 2805 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,092 psi | 71% | 2776 fps | 97.5% |
| IMR 4350 | <<locked>> | 82% | 40,132 psi | 63% | 2710 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,308 psi | 68% | 2762 fps | 97% |
| IMR 4831 | <<locked>> | 80% | 33,170 psi | 52% | 2582 fps | 96.8% |
| IMR 4895 | <<locked>> | 80% | 51,982 psi | 81% | 2956 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 50,923 psi | 80% | 2923 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 96% | 50,270 psi | 79% | 3018 fps | 95.9% |
| Lovex S060 | <<locked>> | 80% | 53,780 psi | 84% | 2904 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 49,458 psi | 78% | 2861 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,915 psi | 64% | 2713 fps | 97.7% |
| Lovex S070 | <<locked>> | 80% | 39,204 psi | 61% | 2690 fps | 96.1% |
| Lovex S071 | <<locked>> | 92% | 35,462 psi | 56% | 2635 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 53,853 psi | 84% | 2923 fps | 100% |
| Norma 203B | <<locked>> | 80% | 50,024 psi | 78% | 2913 fps | 100% |
| Norma 204 | <<locked>> | 86% | 45,629 psi | 72% | 2867 fps | 95.9% |
| Norma MRP | 61.3 gr | 88% | 38,609 psi | 61% | 2808 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 37,826 psi | 59% | 2710 fps | 98% |
| Ramshot Big Game | <<locked>> | 80% | 50,488 psi | 79% | 2936 fps | 100% |
| Ramshot Grand | 66.1 gr | 92% | 46,238 psi | 72% | 2949 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 36,622 psi | 57% | 2694 fps | 96% |
| Ramshot Magnum | <<locked>> | 92% | 40,074 psi | 63% | 2795 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,673 psi | 43% | 1719 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,080 psi | 75% | 2861 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,672 psi | 70% | 2917 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,782 psi | 59% | 2730 fps | 97.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,767 psi | 58% | 2740 fps | 97.2% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 38,435 psi | 60% | 2831 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 51,416 psi | 81% | 2877 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,049 psi | 71% | 2812 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 46,514 psi | 73% | 2851 fps | 95% |
| Rottweil R 905 | <<locked>> | 90% | 43,656 psi | 68% | 2848 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 42,032 psi | 66% | 2733 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,915 psi | 64% | 2713 fps | 97.7% |
| Shooters World Precision | <<locked>> | 80% | 49,458 psi | 78% | 2861 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,204 psi | 61% | 2690 fps | 96.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,108 psi | 72% | 2864 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 53,563 psi | 84% | 2953 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,253 psi | 72% | 2717 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,089 psi | 63% | 2654 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 43,265 psi | 68% | 2841 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 54,302 psi | 85% | 2851 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 45,266 psi | 71% | 2812 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 51,068 psi | 80% | 2900 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 34,316 psi | 54% | 2664 fps | 99.6% |
| Somchem S385 | <<locked>> | 86% | 38,856 psi | 61% | 2713 fps | 95.1% |
| Unknown powder | <<locked>> | 80% | 40,756 psi | 64% | 2769 fps | 98.2% |
| Vihtavuori N135 | <<locked>> | 80% | 51,706 psi | 81% | 2838 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,793 psi | 81% | 2851 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,250 psi | 68% | 2736 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,262 psi | 62% | 2710 fps | 98.3% |
| Vihtavuori N165 | <<locked>> | 92% | 40,886 psi | 64% | 2749 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 49,995 psi | 78% | 2844 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,595 psi | 60% | 2710 fps | 98% |
| Vihtavuori N555 | <<locked>> | 80% | 29,936 psi | 47% | 2546 fps | 96% |
| Vihtavuori N560 | <<locked>> | 96% | 51,198 psi | 80% | 3051 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,290 psi | 60% | 2677 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 43,555 psi | 68% | 2841 fps | 97.2% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,643 psi | 40% | 2490 fps | 95.5% |
| Winchester Supreme 780 | <<locked>> | 90% | 44,991 psi | 71% | 2835 fps | 95.8% |
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 100 powders for 7 mm WSM loaded with the .284 | 140gr | Sierra GameKing. Alliant Reloder-26 delivers the highest muzzle velocity at 3,182 fps; across all powders the maximum-charge window runs from 1,883 fps to 3,182 fps. Accurate 3100 gives the best case fill at 100 %, and 100 of the 100 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:10.0 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, Ramshot Grand, Norma MRP rank at the top here: for 7 mm WSM with the .284 | 140gr | Sierra GameKing 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.