Load Specifications
Load data in caliber 7 mm WSM with .284 | 168gr | Sierra MatchKing bullet and 77 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Ramshot Grand and Alliant Reloder-26.
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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 56,608 psi | 89% | 2799 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 54,621 psi | 86% | 2779 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 55,100 psi | 86% | 2890 fps | 98% |
| ADI AR 2208 | <<locked>> | 82% | 55,811 psi | 87% | 2736 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 55,172 psi | 86% | 2835 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 96% | 56,550 psi | 89% | 2894 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 47,224 psi | 74% | 2730 fps | 97.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,047 psi | 66% | 2694 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 57,072 psi | 89% | 2759 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 55,448 psi | 87% | 2835 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 56,579 psi | 89% | 2848 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 54,621 psi | 86% | 2818 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 96% | 56,405 psi | 88% | 2887 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 98% | 57,406 psi | 90% | 2854 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 53,040 psi | 83% | 2864 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 53,853 psi | 84% | 2890 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 55,027 psi | 86% | 2799 fps | 96.1% |
| Bofors RP15 | <<locked>> | 98% | 55,259 psi | 87% | 2871 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 48,907 psi | 77% | 2799 fps | 98.3% |
| Bofors RP5 | <<locked>> | 96% | 56,405 psi | 88% | 2887 fps | 99.7% |
| Bofors RP7 | <<locked>> | 86% | 57,087 psi | 89% | 2779 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 52,112 psi | 82% | 2818 fps | 99% |
| Hodgdon H414 | <<locked>> | 86% | 56,086 psi | 88% | 2828 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 55,274 psi | 87% | 2789 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 94% | 56,695 psi | 89% | 2835 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 94% | 55,332 psi | 87% | 2812 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 55,695 psi | 87% | 2756 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,924 psi | 81% | 2927 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 86% | 56,724 psi | 89% | 2871 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,115 psi | 58% | 1732 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 55,143 psi | 86% | 2766 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 55,172 psi | 86% | 2749 fps | 99.9% |
| IMR 4831 | <<locked>> | 88% | 54,839 psi | 86% | 2769 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 57,580 psi | 90% | 2815 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 96% | 54,404 psi | 85% | 2871 fps | 98.8% |
| Lovex S065 | <<locked>> | 86% | 55,622 psi | 87% | 2749 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 57,363 psi | 90% | 2795 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,853 psi | 84% | 2759 fps | 100% |
| Norma 204 | <<locked>> | 88% | 55,970 psi | 88% | 2818 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 37,521 psi | 59% | 2618 fps | 97.4% |
| Norma MRP | <<locked>> | 94% | 56,260 psi | 88% | 2910 fps | 100% |
| Norma URP | <<locked>> | 88% | 56,695 psi | 89% | 2815 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 54,868 psi | 86% | 2890 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 88% | 55,361 psi | 87% | 2818 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 57,087 psi | 89% | 2884 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,855 psi | 59% | 1772 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 56,086 psi | 88% | 2831 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 54,404 psi | 85% | 2802 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 56,463 psi | 88% | 2884 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 52,417 psi | 82% | 2927 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 47,355 psi | 74% | 2808 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 82% | 54,824 psi | 86% | 2726 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 56,550 psi | 89% | 2802 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 92% | 54,230 psi | 85% | 2812 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 86% | 57,087 psi | 89% | 2779 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 55,622 psi | 87% | 2749 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 57,363 psi | 90% | 2795 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 56,304 psi | 88% | 2782 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 54,795 psi | 86% | 2602 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 54,940 psi | 86% | 2703 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 57,377 psi | 90% | 2861 fps | 99.7% |
| Somchem S355 | <<locked>> | 82% | 54,534 psi | 85% | 2720 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 54,418 psi | 85% | 2743 fps | 98% |
| Somchem S365 | <<locked>> | 90% | 56,855 psi | 89% | 2815 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 54,723 psi | 86% | 2785 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 84% | 55,680 psi | 87% | 2694 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 54,940 psi | 86% | 2756 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 57,740 psi | 90% | 2815 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 57,653 psi | 90% | 2812 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 56,072 psi | 88% | 2831 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 56,173 psi | 88% | 2907 fps | 98.7% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 55,811 psi | 87% | 2884 fps | 98.8% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 48,617 psi | 76% | 2815 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 54,172 psi | 85% | 2717 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 56,318 psi | 88% | 2835 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 54,592 psi | 86% | 2936 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 54,549 psi | 85% | 2779 fps | 99.4% |
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 3100 | <<locked>> | 80% | 33,112 psi | 52% | 2375 fps | 97.1% |
| Accurate 4350 | <<locked>> | 80% | 44,512 psi | 70% | 2618 fps | 100% |
| Accurate MAGPRO | 62.1 gr | 88% | 44,701 psi | 70% | 2710 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 52,446 psi | 82% | 2687 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 37,188 psi | 58% | 2497 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 86% | 40,480 psi | 63% | 2598 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 96% | 41,437 psi | 65% | 2615 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 92% | 32,605 psi | 51% | 2461 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 53,664 psi | 84% | 2710 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,641 psi | 67% | 2625 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 49,139 psi | 77% | 2740 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,188 psi | 58% | 2493 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 82% | 35,288 psi | 55% | 2490 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,705 psi | 50% | 2402 fps | 99.5% |
| Alliant Reloder-25 | <<locked>> | 80% | 27,789 psi | 44% | 2310 fps | 95.3% |
| Alliant Reloder-26 | 57.1 gr | 80% | 34,534 psi | 54% | 2533 fps | 98.9% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 51,735 psi | 81% | 2743 fps | 95.3% |
| Bofors RP15 | <<locked>> | 86% | 37,376 psi | 59% | 2536 fps | 95.8% |
| Bofors RP30 | <<locked>> | 92% | 37,347 psi | 59% | 2569 fps | 95.1% |
| Bofors RP5 | <<locked>> | 82% | 35,288 psi | 55% | 2490 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 47,384 psi | 74% | 2621 fps | 99.1% |
| Hodgdon H1000 | <<locked>> | 90% | 37,173 psi | 58% | 2520 fps | 95% |
| Hodgdon H414 | <<locked>> | 80% | 46,209 psi | 72% | 2667 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 80% | 48,834 psi | 77% | 2680 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 86% | 43,308 psi | 68% | 2605 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 86% | 42,438 psi | 67% | 2589 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,118 psi | 63% | 2513 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 35,070 psi | 55% | 2559 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 45,324 psi | 71% | 2687 fps | 99% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,760 psi | 44% | 1545 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,873 psi | 67% | 2556 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,602 psi | 76% | 2644 fps | 99.4% |
| IMR 4831 | <<locked>> | 80% | 42,293 psi | 66% | 2566 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 42,163 psi | 66% | 2546 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 88% | 41,437 psi | 65% | 2631 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 46,238 psi | 72% | 2598 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 44,599 psi | 70% | 2589 fps | 99.1% |
| Lovex S071 | <<locked>> | 80% | 28,558 psi | 45% | 2257 fps | 95.2% |
| Norma 204 | <<locked>> | 80% | 42,685 psi | 67% | 2592 fps | 97.2% |
| Norma 217 | <<locked>> | 96% | 32,967 psi | 52% | 2503 fps | 95.5% |
| Norma MRP | <<locked>> | 80% | 34,403 psi | 54% | 2497 fps | 96.4% |
| Norma URP | <<locked>> | 80% | 43,685 psi | 68% | 2608 fps | 99.9% |
| Ramshot Grand | 59 gr | 86% | 38,334 psi | 60% | 2575 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 42,467 psi | 67% | 2602 fps | 99.2% |
| Ramshot Magnum | <<locked>> | 86% | 34,185 psi | 54% | 2461 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,282 psi | 44% | 1581 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 52,170 psi | 82% | 2779 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,237 psi | 69% | 2638 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,424 psi | 66% | 2651 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 31,894 psi | 50% | 2470 fps | 95.2% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 43,801 psi | 69% | 2740 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 51,445 psi | 81% | 2677 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 41,031 psi | 64% | 2530 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 80% | 36,463 psi | 57% | 2477 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 47,384 psi | 74% | 2621 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,238 psi | 72% | 2598 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 44,599 psi | 70% | 2589 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 52,678 psi | 83% | 2733 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,663 psi | 81% | 2559 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,295 psi | 71% | 2549 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 36,143 psi | 57% | 2474 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 51,256 psi | 80% | 2671 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 41,901 psi | 66% | 2523 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 40,611 psi | 64% | 2566 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,086 psi | 58% | 2464 fps | 96.8% |
| Vihtavuori N150 | <<locked>> | 80% | 49,066 psi | 77% | 2598 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,165 psi | 71% | 2602 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 34,214 psi | 54% | 2392 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 44,382 psi | 70% | 2605 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 35,549 psi | 56% | 2474 fps | 99.4% |
| Vihtavuori N560 | <<locked>> | 86% | 42,554 psi | 67% | 2664 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 90% | 39,595 psi | 62% | 2592 fps | 95% |
| Vihtavuori N568 | <<locked>> | 98% | 45,324 psi | 71% | 2753 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,005 psi | 69% | 2562 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,209 psi | 72% | 2667 fps | 99.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 28,152 psi | 44% | 2411 fps | 99.6% |
| Winchester Supreme 780 | <<locked>> | 82% | 36,042 psi | 56% | 2441 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 77 powders for 7 mm WSM loaded with the .284 | 168gr | Sierra MatchKing. Winchester StaBALL HD delivers the highest muzzle velocity at 2,936 fps; across all powders the maximum-charge window runs from 1,732 fps to 2,936 fps. ADI AR 2217 gives the best case fill at 100 %, and 77 of the 77 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 168.0 gr projectile in 0.284" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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, Ramshot Grand, Alliant Reloder-26 rank at the top here: for 7 mm WSM with the .284 | 168gr | Sierra 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.