Load Specifications
Load data in caliber 7 mm WSM with .284 | 160gr | Sierra Tipped MatchKing bullet and 83 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Alliant Reloder-26 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.
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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 2700 | <<locked>> | 82% | 57,377 psi | 90% | 2802 fps | 99.6% |
| Accurate 3100 | <<locked>> | 98% | 56,855 psi | 89% | 2861 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 57,305 psi | 90% | 2776 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,926 psi | 86% | 2848 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 55,100 psi | 86% | 2949 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 84% | 56,579 psi | 89% | 2805 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,477 psi | 87% | 2894 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 98% | 57,029 psi | 89% | 2953 fps | 98.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 44,498 psi | 70% | 2723 fps | 96% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,291 psi | 62% | 2677 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,418 psi | 85% | 2782 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,492 psi | 87% | 2897 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 56,913 psi | 89% | 2917 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 55,114 psi | 86% | 2884 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 98% | 56,565 psi | 89% | 2949 fps | 99.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 57,435 psi | 90% | 2920 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,458 psi | 78% | 2864 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,838 psi | 84% | 2956 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,405 psi | 87% | 2930 fps | 99.2% |
| Bofors RP3 | <<locked>> | 82% | 55,187 psi | 86% | 2799 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,527 psi | 71% | 2795 fps | 97% |
| Bofors RP5 | <<locked>> | 98% | 56,565 psi | 89% | 2949 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 54,360 psi | 85% | 2792 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,892 psi | 77% | 2812 fps | 97.9% |
| Hodgdon H380 | <<locked>> | 82% | 55,390 psi | 87% | 2818 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 56,840 psi | 89% | 2897 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 86% | 56,188 psi | 88% | 2858 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 96% | 57,174 psi | 90% | 2894 fps | 98% |
| Hodgdon H4831 SC | <<locked>> | 96% | 56,028 psi | 88% | 2877 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 55,927 psi | 88% | 2822 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,443 psi | 76% | 2917 fps | 99% |
| Hodgdon Superformance | <<locked>> | 88% | 57,203 psi | 90% | 2936 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,898 psi | 58% | 1762 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 56,188 psi | 88% | 2789 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,535 psi | 87% | 2828 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,956 psi | 88% | 2818 fps | 99.8% |
| IMR 4831 | <<locked>> | 90% | 55,274 psi | 87% | 2838 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,679 psi | 86% | 2822 fps | 97.7% |
| IMR 7828 SSC | <<locked>> | 98% | 54,621 psi | 86% | 2930 fps | 98.3% |
| Lovex S062 | <<locked>> | 82% | 56,507 psi | 89% | 2782 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 56,275 psi | 88% | 2815 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 54,259 psi | 85% | 2808 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,430 psi | 79% | 2762 fps | 99.8% |
| Norma 203B | <<locked>> | 82% | 57,159 psi | 90% | 2838 fps | 100% |
| Norma 204 | <<locked>> | 90% | 56,623 psi | 89% | 2887 fps | 99.1% |
| Norma MRP | <<locked>> | 96% | 56,231 psi | 88% | 2972 fps | 99.9% |
| Norma URP | <<locked>> | 90% | 56,884 psi | 89% | 2877 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,056 psi | 86% | 2946 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 90% | 55,840 psi | 88% | 2887 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,113 psi | 83% | 2881 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,594 psi | 59% | 1801 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,143 psi | 86% | 2805 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 56,217 psi | 88% | 2904 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,737 psi | 86% | 2867 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 56,840 psi | 89% | 2953 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,631 psi | 76% | 2913 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 84% | 55,579 psi | 87% | 2799 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 57,072 psi | 89% | 2864 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 94% | 54,389 psi | 85% | 2871 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 86% | 54,360 psi | 85% | 2792 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,275 psi | 88% | 2815 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 56,507 psi | 89% | 2782 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 54,259 psi | 85% | 2808 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 56,855 psi | 89% | 2854 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,883 psi | 88% | 2674 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,854 psi | 88% | 2769 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 57,653 psi | 90% | 2920 fps | 99.4% |
| Somchem S355 | <<locked>> | 84% | 55,361 psi | 87% | 2792 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,158 psi | 86% | 2805 fps | 97.6% |
| Somchem S365 | <<locked>> | 92% | 56,826 psi | 89% | 2877 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,926 psi | 86% | 2844 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 86% | 56,347 psi | 88% | 2762 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,448 psi | 87% | 2822 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,447 psi | 85% | 2825 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 82% | 57,145 psi | 90% | 2759 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 54,476 psi | 85% | 2828 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 56,028 psi | 88% | 2894 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 56,275 psi | 88% | 2963 fps | 98.1% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,706 psi | 81% | 2877 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,723 psi | 86% | 2782 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 56,840 psi | 89% | 2897 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,838 psi | 84% | 2999 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,940 psi | 86% | 2838 fps | 99% |
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% | 53,621 psi | 84% | 2743 fps | 99.3% |
| Accurate 3100 | <<locked>> | 80% | 30,850 psi | 48% | 2369 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 53,751 psi | 84% | 2726 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,669 psi | 65% | 2621 fps | 99.6% |
| Accurate MAGPRO | 63.7 gr | 92% | 47,776 psi | 75% | 2822 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 50,111 psi | 79% | 2710 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 40,118 psi | 63% | 2612 fps | 95.9% |
| ADI AR 2213 | <<locked>> | 90% | 43,555 psi | 68% | 2710 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 98% | 41,655 psi | 65% | 2664 fps | 95% |
| ADI AR 2225 | <<locked>> | 96% | 34,650 psi | 54% | 2559 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,068 psi | 80% | 2733 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,248 psi | 63% | 2635 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,064 psi | 72% | 2753 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 37,275 psi | 58% | 2546 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 86% | 37,855 psi | 59% | 2602 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,747 psi | 47% | 2402 fps | 98.6% |
| Alliant Reloder-25 | <<locked>> | 84% | 29,718 psi | 47% | 2415 fps | 95.4% |
| Alliant Reloder-26 | 56.1 gr | 80% | 32,126 psi | 50% | 2523 fps | 97.5% |
| Bofors RP15 | <<locked>> | 88% | 37,362 psi | 59% | 2589 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 51,692 psi | 81% | 2746 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 39,827 psi | 62% | 2677 fps | 95.2% |
| Bofors RP5 | <<locked>> | 86% | 37,855 psi | 59% | 2602 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 45,165 psi | 71% | 2631 fps | 98.2% |
| Hodgdon H1000 | <<locked>> | 94% | 40,030 psi | 63% | 2631 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 51,938 psi | 81% | 2766 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 43,497 psi | 68% | 2671 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 80% | 46,238 psi | 72% | 2687 fps | 97.9% |
| Hodgdon H4831 | <<locked>> | 90% | 46,644 psi | 73% | 2720 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 90% | 45,701 psi | 72% | 2700 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,753 psi | 59% | 2520 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 37,420 psi | 59% | 2664 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 42,511 psi | 67% | 2687 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,601 psi | 43% | 1572 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,736 psi | 83% | 2740 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,727 psi | 64% | 2566 fps | 97.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,427 psi | 73% | 2657 fps | 98.8% |
| IMR 4831 | <<locked>> | 80% | 39,900 psi | 63% | 2575 fps | 99.5% |
| IMR 4955 Enduron | <<locked>> | 88% | 45,295 psi | 71% | 2657 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 90% | 41,698 psi | 65% | 2684 fps | 95% |
| Lovex S062 | <<locked>> | 80% | 53,055 psi | 83% | 2733 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,048 psi | 69% | 2612 fps | 99.3% |
| Lovex S070 | <<locked>> | 80% | 42,366 psi | 66% | 2598 fps | 98.3% |
| Lovex S071 | <<locked>> | 84% | 30,371 psi | 48% | 2356 fps | 95.3% |
| Norma 203B | <<locked>> | 80% | 53,635 psi | 84% | 2785 fps | 100% |
| Norma 204 | <<locked>> | 80% | 40,234 psi | 63% | 2592 fps | 95.8% |
| Norma MRP | 55.8 gr | 82% | 34,505 psi | 54% | 2549 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 41,249 psi | 65% | 2618 fps | 99.6% |
| Ramshot Grand | <<locked>> | 90% | 41,394 psi | 65% | 2694 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 39,943 psi | 63% | 2605 fps | 98.3% |
| Ramshot Magnum | <<locked>> | 90% | 36,811 psi | 58% | 2572 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,108 psi | 44% | 1611 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,561 psi | 81% | 2749 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,863 psi | 77% | 2799 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,481 psi | 65% | 2641 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,871 psi | 62% | 2654 fps | 99.2% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 34,243 psi | 54% | 2579 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 48,834 psi | 77% | 2697 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 41,568 psi | 65% | 2592 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 84% | 39,030 psi | 61% | 2585 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 45,165 psi | 71% | 2631 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,048 psi | 69% | 2612 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 53,055 psi | 83% | 2733 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,366 psi | 66% | 2598 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,864 psi | 78% | 2749 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,385 psi | 77% | 2585 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,192 psi | 68% | 2559 fps | 98.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,682 psi | 61% | 2582 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 48,747 psi | 76% | 2690 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 45,179 psi | 71% | 2635 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 37,985 psi | 60% | 2575 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,795 psi | 55% | 2461 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 80% | 46,717 psi | 73% | 2621 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,525 psi | 67% | 2612 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 36,738 psi | 58% | 2500 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 53,693 psi | 84% | 2713 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 42,061 psi | 66% | 2615 fps | 99.5% |
| Vihtavuori N555 | <<locked>> | 80% | 33,228 psi | 52% | 2474 fps | 98.6% |
| Vihtavuori N560 | <<locked>> | 90% | 45,745 psi | 72% | 2779 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 94% | 42,206 psi | 66% | 2700 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,553 psi | 65% | 2575 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,743 psi | 69% | 2674 fps | 98.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,295 psi | 41% | 2392 fps | 98.3% |
| Winchester Supreme 780 | <<locked>> | 86% | 38,841 psi | 61% | 2552 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 83 powders for 7 mm WSM loaded with the .284 | 160gr | Sierra Tipped MatchKing. Winchester StaBALL HD delivers the highest muzzle velocity at 2,999 fps; across all powders the maximum-charge window runs from 1,762 fps to 2,999 fps. ADI AR 2217 gives the best case fill at 100 %, and 83 of the 83 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, 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. Accurate MAGPRO, Alliant Reloder-26, Norma MRP rank at the top here: for 7 mm WSM with the .284 | 160gr | Sierra Tipped MatchKing 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.