Load Specifications
Load data in caliber 7 mm WSM with .284 | 152gr | Hasler ARIETE 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 Vihtavuori N560.
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% | 55,579 psi | 87% | 2779 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 57,087 psi | 89% | 2858 fps | 99.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 55,347 psi | 87% | 2904 fps | 99.9% |
| Accurate 4064 | <<locked>> | 84% | 55,985 psi | 88% | 2835 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 57,334 psi | 90% | 2949 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 53,722 psi | 84% | 2989 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 86% | 56,594 psi | 89% | 2877 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 54,969 psi | 86% | 2949 fps | 98.6% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 56,318 psi | 88% | 3005 fps | 97.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 55,985 psi | 88% | 2999 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 57,392 psi | 90% | 2897 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 57,522 psi | 90% | 2920 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 54,694 psi | 86% | 2959 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 55,941 psi | 88% | 2979 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 54,215 psi | 85% | 2936 fps | 98.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 55,317 psi | 87% | 2995 fps | 98.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,228 psi | 82% | 2920 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,121 psi | 71% | 2851 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 98% | 56,246 psi | 88% | 3068 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,589 psi | 79% | 2917 fps | 98% |
| Bofors RP3 | <<locked>> | 84% | 54,505 psi | 85% | 2858 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 55,317 psi | 87% | 2995 fps | 98.8% |
| Bofors RP7 | <<locked>> | 90% | 57,551 psi | 90% | 2904 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 84% | 54,969 psi | 86% | 2881 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 56,115 psi | 88% | 2956 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 88% | 55,738 psi | 87% | 2913 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 98% | 56,434 psi | 88% | 2946 fps | 97.2% |
| Hodgdon H4831 SC | <<locked>> | 98% | 55,274 psi | 87% | 2927 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 54,810 psi | 86% | 2877 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 56,463 psi | 88% | 2913 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,135 psi | 69% | 2884 fps | 97.3% |
| Hodgdon Superformance | <<locked>> | 90% | 56,391 psi | 88% | 2992 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,361 psi | 57% | 1791 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 56,782 psi | 89% | 2874 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 55,854 psi | 88% | 2854 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 54,868 psi | 86% | 2841 fps | 99.5% |
| IMR 4350 | <<locked>> | 92% | 55,129 psi | 86% | 2887 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 88% | 55,767 psi | 87% | 2877 fps | 99.5% |
| IMR 4831 | <<locked>> | 92% | 54,041 psi | 85% | 2887 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,332 psi | 87% | 2894 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 57,682 psi | 90% | 2930 fps | 97.6% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,447 psi | 84% | 2969 fps | 97.4% |
| Lovex S060 | <<locked>> | 82% | 57,392 psi | 90% | 2838 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 55,941 psi | 88% | 2844 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 55,724 psi | 87% | 2871 fps | 99.9% |
| Lovex S070 | <<locked>> | 92% | 57,145 psi | 90% | 2917 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,774 psi | 72% | 2753 fps | 99% |
| Norma 201 | <<locked>> | 82% | 57,319 psi | 90% | 2858 fps | 100% |
| Norma 203B | <<locked>> | 84% | 56,811 psi | 89% | 2904 fps | 100% |
| Norma 204 | <<locked>> | 92% | 56,130 psi | 88% | 2943 fps | 98.6% |
| Norma MRP | <<locked>> | 98% | 54,795 psi | 86% | 3018 fps | 99.6% |
| Norma URP | <<locked>> | 92% | 56,130 psi | 88% | 2940 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 53,954 psi | 85% | 2877 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,041 psi | 85% | 2989 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 92% | 55,085 psi | 86% | 2943 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,037 psi | 75% | 2858 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,970 psi | 58% | 1834 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 54,955 psi | 86% | 2864 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 55,506 psi | 87% | 2969 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 57,609 psi | 90% | 2979 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 56,057 psi | 88% | 3012 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,048 psi | 69% | 2874 fps | 98.3% |
| Rottweil R 902 | <<locked>> | 82% | 54,389 psi | 85% | 2808 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 54,650 psi | 86% | 2858 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 56,434 psi | 88% | 2917 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 98% | 57,101 psi | 89% | 2976 fps | 99% |
| Rottweil R 907 | <<locked>> | 90% | 57,551 psi | 90% | 2904 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 55,724 psi | 87% | 2871 fps | 99.9% |
| Shooters World Precision | <<locked>> | 84% | 55,941 psi | 88% | 2844 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 57,145 psi | 90% | 2917 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 56,492 psi | 89% | 2920 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 57,174 psi | 90% | 2887 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,709 psi | 87% | 2740 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 55,448 psi | 87% | 2825 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 56,623 psi | 89% | 2972 fps | 98.9% |
| Somchem S355 | <<locked>> | 86% | 54,665 psi | 86% | 2854 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 54,447 psi | 85% | 2851 fps | 96.7% |
| Somchem S365 | <<locked>> | 94% | 55,651 psi | 87% | 2936 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 54,041 psi | 85% | 2894 fps | 99.1% |
| Vihtavuori N135 | <<locked>> | 82% | 55,085 psi | 86% | 2766 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,100 psi | 86% | 2782 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 55,825 psi | 87% | 2825 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 54,462 psi | 85% | 2877 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,432 psi | 84% | 2871 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 84% | 56,971 psi | 89% | 2828 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 57,246 psi | 90% | 2936 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 54,375 psi | 85% | 2943 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 55,085 psi | 86% | 3012 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 54,128 psi | 85% | 2844 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 56,115 psi | 88% | 2956 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 47,645 psi | 75% | 2989 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 57,595 psi | 90% | 2897 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 54,099 psi | 85% | 2890 fps | 98.4% |
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% | 51,924 psi | 81% | 2726 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 50,183 psi | 79% | 2749 fps | 98.4% |
| Accurate 3100 | <<locked>> | 84% | 31,604 psi | 50% | 2448 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 49,298 psi | 77% | 2736 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,666 psi | 59% | 2608 fps | 98.6% |
| Accurate MAGPRO | <<locked>> | 96% | 50,154 psi | 79% | 2930 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 46,789 psi | 73% | 2720 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 42,119 psi | 66% | 2713 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 94% | 45,876 psi | 72% | 2815 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 52,272 psi | 82% | 2940 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,355 psi | 74% | 2743 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,488 psi | 79% | 2812 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,912 psi | 58% | 2621 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,901 psi | 66% | 2746 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 41,785 psi | 65% | 2707 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 90% | 39,262 psi | 62% | 2694 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,774 psi | 42% | 2369 fps | 96.6% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,503 psi | 51% | 2549 fps | 96% |
| Alliant Reloder-26 | 56.6 gr | 82% | 30,835 psi | 48% | 2546 fps | 96.1% |
| Bofors RP15 | <<locked>> | 94% | 41,466 psi | 65% | 2740 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 47,601 psi | 75% | 2753 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 39,262 psi | 62% | 2694 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 41,858 psi | 66% | 2628 fps | 96.8% |
| Hodgdon H380 | <<locked>> | 80% | 47,906 psi | 75% | 2766 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 39,929 psi | 63% | 2661 fps | 96.9% |
| Hodgdon H4350 | <<locked>> | 80% | 42,873 psi | 67% | 2684 fps | 96.4% |
| Hodgdon H4831 | <<locked>> | 94% | 49,182 psi | 77% | 2825 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 48,153 psi | 75% | 2805 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,461 psi | 54% | 2516 fps | 99.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 52,591 psi | 82% | 2858 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 38,667 psi | 61% | 2753 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 38,812 psi | 61% | 2667 fps | 96.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,151 psi | 43% | 1601 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 53,461 psi | 84% | 2825 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,182 psi | 77% | 2753 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,474 psi | 81% | 2782 fps | 99.1% |
| IMR 4350 | <<locked>> | 80% | 37,434 psi | 59% | 2552 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,323 psi | 68% | 2657 fps | 97.6% |
| IMR 4831 | <<locked>> | 80% | 36,318 psi | 57% | 2562 fps | 98.4% |
| IMR 4895 | <<locked>> | 80% | 51,793 psi | 81% | 2838 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 47,776 psi | 75% | 2762 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 96% | 46,818 psi | 73% | 2848 fps | 95.8% |
| Lovex S060 | <<locked>> | 80% | 53,838 psi | 84% | 2789 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 49,313 psi | 77% | 2746 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,669 psi | 64% | 2605 fps | 98.2% |
| Lovex S070 | <<locked>> | 80% | 38,972 psi | 61% | 2589 fps | 96.8% |
| Lovex S071 | <<locked>> | 90% | 32,837 psi | 51% | 2480 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 53,664 psi | 84% | 2805 fps | 100% |
| Norma 203B | <<locked>> | 80% | 49,835 psi | 78% | 2795 fps | 100% |
| Norma 204 | <<locked>> | 84% | 42,598 psi | 67% | 2700 fps | 95.7% |
| Norma MRP | 57.6 gr | 86% | 35,839 psi | 56% | 2644 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 37,695 psi | 59% | 2608 fps | 98.6% |
| Ramshot Big Game | <<locked>> | 80% | 50,517 psi | 79% | 2825 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 43,395 psi | 68% | 2789 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 36,492 psi | 57% | 2592 fps | 96.7% |
| Ramshot Magnum | <<locked>> | 94% | 38,537 psi | 60% | 2664 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,572 psi | 43% | 1637 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,066 psi | 75% | 2753 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,570 psi | 70% | 2799 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,637 psi | 59% | 2628 fps | 98.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,550 psi | 57% | 2638 fps | 97.9% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 35,549 psi | 56% | 2667 fps | 95% |
| Rottweil R 902 | <<locked>> | 80% | 51,169 psi | 80% | 2759 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,817 psi | 70% | 2700 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 46,456 psi | 73% | 2746 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 88% | 40,654 psi | 64% | 2684 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 41,858 psi | 66% | 2628 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,669 psi | 64% | 2605 fps | 98.2% |
| Shooters World Precision | <<locked>> | 80% | 49,313 psi | 77% | 2746 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,972 psi | 61% | 2589 fps | 96.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,137 psi | 72% | 2756 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 53,635 psi | 84% | 2838 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,050 psi | 72% | 2602 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,726 psi | 62% | 2549 fps | 96.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 40,292 psi | 63% | 2677 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 45,063 psi | 71% | 2697 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 47,645 psi | 75% | 2736 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 33,968 psi | 53% | 2559 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 38,653 psi | 61% | 2608 fps | 95.8% |
| Vihtavuori N135 | <<locked>> | 80% | 51,459 psi | 81% | 2717 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,851 psi | 81% | 2736 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,149 psi | 68% | 2628 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,015 psi | 61% | 2605 fps | 98.8% |
| Vihtavuori N165 | <<locked>> | 90% | 37,971 psi | 60% | 2585 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 49,879 psi | 78% | 2726 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,363 psi | 60% | 2602 fps | 98.5% |
| Vihtavuori N555 | <<locked>> | 80% | 29,573 psi | 46% | 2444 fps | 96.7% |
| Vihtavuori N560 | 62.9 gr | 94% | 47,834 psi | 75% | 2884 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,159 psi | 60% | 2572 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 39,929 psi | 63% | 2661 fps | 96.9% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,150 psi | 39% | 2398 fps | 96.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 53,737 psi | 84% | 2841 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 40,828 psi | 64% | 2651 fps | 95.4% |
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 101 powders for 7 mm WSM loaded with the .284 | 152gr | Hasler ARIETE. Alliant Reloder-26 delivers the highest muzzle velocity at 3,068 fps; across all powders the maximum-charge window runs from 1,791 fps to 3,068 fps. Accurate 3100 gives the best case fill at 100 %, and 101 of the 101 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 49–90 %, leaving at least 10 % headroom. The 152.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, ADI AR 2217 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, Vihtavuori N560 rank at the top here: for 7 mm WSM with the .284 | 152gr | Hasler ARIETE they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Baschieri & Pellagri 109, Bofors RP30 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.