Load Specifications
Load data in caliber 7 mm WSM with .284 | 175gr | Woodleigh PP SN bullet and 75 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Vihtavuori N560 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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 94% | 54,563 psi | 86% | 2713 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 56,318 psi | 88% | 2746 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 57,072 psi | 89% | 2867 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 82% | 57,072 psi | 89% | 2697 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 56,826 psi | 89% | 2802 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 94% | 54,447 psi | 85% | 2808 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,805 psi | 76% | 2710 fps | 98.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,511 psi | 68% | 2677 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 88% | 57,145 psi | 90% | 2795 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,433 psi | 85% | 2759 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 56,275 psi | 88% | 2789 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,433 psi | 85% | 2805 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 96% | 55,709 psi | 87% | 2772 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 54,969 psi | 86% | 2835 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 56,072 psi | 88% | 2861 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 56,217 psi | 88% | 2769 fps | 96.8% |
| Bofors RP15 | <<locked>> | 98% | 57,174 psi | 90% | 2844 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,850 psi | 80% | 2779 fps | 98.9% |
| Bofors RP5 | <<locked>> | 94% | 54,433 psi | 85% | 2805 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 54,984 psi | 86% | 2694 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,896 psi | 84% | 2795 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 86% | 57,711 psi | 90% | 2795 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 56,710 psi | 89% | 2753 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 92% | 54,505 psi | 85% | 2746 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 94% | 57,014 psi | 89% | 2785 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 57,363 psi | 90% | 2720 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,824 psi | 84% | 2907 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 54,404 psi | 85% | 2782 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,188 psi | 58% | 1696 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,594 psi | 89% | 2733 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,449 psi | 88% | 2713 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 56,434 psi | 88% | 2736 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,622 psi | 87% | 2733 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 96% | 55,912 psi | 88% | 2841 fps | 99.2% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 39,102 psi | 61% | 2582 fps | 96.1% |
| Lovex S065 | <<locked>> | 86% | 56,985 psi | 89% | 2713 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 55,085 psi | 86% | 2710 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 55,666 psi | 87% | 2730 fps | 100% |
| Norma 204 | <<locked>> | 88% | 57,580 psi | 90% | 2789 fps | 99.7% |
| Norma 217ᴾ | <<locked>> | 100% | 39,059 psi | 61% | 2605 fps | 98.3% |
| Norma MRP | <<locked>> | 92% | 54,346 psi | 85% | 2825 fps | 100% |
| Norma URP | <<locked>> | 86% | 54,462 psi | 85% | 2726 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 56,913 psi | 89% | 2864 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 88% | 57,029 psi | 89% | 2785 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 55,027 psi | 86% | 2799 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,942 psi | 59% | 1736 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 56,159 psi | 88% | 2769 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,404 psi | 85% | 2795 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,201 psi | 85% | 2900 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,110 psi | 77% | 2789 fps | 97.5% |
| Rottweil R 903 | <<locked>> | 82% | 56,275 psi | 88% | 2690 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 54,607 psi | 86% | 2720 fps | 99% |
| Rottweil R 905 | <<locked>> | 92% | 55,956 psi | 88% | 2782 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 84% | 54,984 psi | 86% | 2694 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 56,985 psi | 89% | 2713 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 55,085 psi | 86% | 2710 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 56,231 psi | 88% | 2562 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,318 psi | 88% | 2671 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,506 psi | 87% | 2779 fps | 99.7% |
| Somchem S355 | <<locked>> | 82% | 55,869 psi | 88% | 2680 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 55,985 psi | 88% | 2713 fps | 98.6% |
| Somchem S365 | <<locked>> | 88% | 55,027 psi | 86% | 2733 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 56,362 psi | 88% | 2756 fps | 100% |
| Vihtavuori N150 | <<locked>> | 84% | 57,072 psi | 89% | 2654 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 56,478 psi | 89% | 2720 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 55,912 psi | 88% | 2736 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 55,521 psi | 87% | 2726 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,360 psi | 85% | 2749 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,230 psi | 85% | 2822 fps | 98.7% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 57,580 psi | 90% | 2858 fps | 99.2% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 50,328 psi | 79% | 2792 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,753 psi | 87% | 2680 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,186 psi | 85% | 2746 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 57,217 psi | 90% | 2907 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 56,333 psi | 88% | 2753 fps | 99.7% |
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% | 34,272 psi | 54% | 2352 fps | 97.9% |
| Accurate 4350 | <<locked>> | 80% | 45,905 psi | 72% | 2589 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 42,960 psi | 67% | 2625 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 53,650 psi | 84% | 2651 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 38,247 psi | 60% | 2470 fps | 96.5% |
| ADI AR 2213 | <<locked>> | 84% | 38,899 psi | 61% | 2513 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 92% | 37,579 psi | 59% | 2484 fps | 95% |
| ADI AR 2225 | <<locked>> | 90% | 31,531 psi | 49% | 2388 fps | 95.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,918 psi | 69% | 2592 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,720 psi | 79% | 2703 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,290 psi | 60% | 2470 fps | 96.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 34,156 psi | 54% | 2415 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,808 psi | 51% | 2379 fps | 99.8% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,645 psi | 45% | 2293 fps | 96.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,882 psi | 56% | 2513 fps | 99.4% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 49,734 psi | 78% | 2661 fps | 95.3% |
| Bofors RP15 | <<locked>> | 82% | 33,910 psi | 53% | 2408 fps | 95% |
| Bofors RP30 | <<locked>> | 90% | 36,318 psi | 57% | 2497 fps | 95.2% |
| Bofors RP5 | <<locked>> | 80% | 34,156 psi | 54% | 2415 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 48,501 psi | 76% | 2592 fps | 99.4% |
| Hodgdon H1000 | <<locked>> | 88% | 35,810 psi | 56% | 2444 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 80% | 47,543 psi | 75% | 2638 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 80% | 50,096 psi | 79% | 2651 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 84% | 41,626 psi | 65% | 2523 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 84% | 40,799 psi | 64% | 2507 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,553 psi | 65% | 2484 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 34,026 psi | 53% | 2484 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 46,804 psi | 73% | 2661 fps | 99.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,775 psi | 44% | 1512 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,005 psi | 69% | 2530 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,980 psi | 78% | 2615 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 43,555 psi | 68% | 2536 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 40,669 psi | 64% | 2470 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 86% | 40,074 psi | 63% | 2552 fps | 95.9% |
| IMR 8133 Enduron | <<locked>> | 98% | 36,637 psi | 57% | 2523 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 47,384 psi | 74% | 2566 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 45,774 psi | 72% | 2559 fps | 99.5% |
| Lovex S071 | <<locked>> | 80% | 29,515 psi | 46% | 2238 fps | 96.2% |
| Norma 204 | <<locked>> | 80% | 43,918 psi | 69% | 2566 fps | 97.9% |
| Norma 217 | <<locked>> | 94% | 32,111 psi | 50% | 2434 fps | 95.7% |
| Norma MRP | 55.2 gr | 80% | 35,636 psi | 56% | 2477 fps | 97.3% |
| Norma URP | <<locked>> | 80% | 44,962 psi | 70% | 2575 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 37,115 psi | 58% | 2500 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 43,743 psi | 69% | 2572 fps | 99.6% |
| Ramshot Magnum | <<locked>> | 84% | 32,953 psi | 52% | 2385 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,529 psi | 45% | 1552 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,716 psi | 72% | 2612 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,801 psi | 69% | 2625 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 30,879 psi | 48% | 2398 fps | 95.3% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 42,511 psi | 67% | 2664 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 80% | 52,794 psi | 83% | 2641 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 39,566 psi | 62% | 2451 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 80% | 37,623 psi | 59% | 2454 fps | 96.6% |
| Rottweil R 907 | <<locked>> | 80% | 48,501 psi | 76% | 2592 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,384 psi | 74% | 2566 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 45,774 psi | 72% | 2559 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,808 psi | 83% | 2520 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,412 psi | 73% | 2520 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,304 psi | 58% | 2451 fps | 96.5% |
| Somchem S355 | <<locked>> | 80% | 52,518 psi | 82% | 2635 fps | 100% |
| Somchem S361 | <<locked>> | 80% | 40,176 psi | 63% | 2441 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 41,974 psi | 66% | 2536 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,247 psi | 60% | 2441 fps | 97.6% |
| Vihtavuori N150 | <<locked>> | 80% | 50,343 psi | 79% | 2562 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,412 psi | 73% | 2572 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 33,054 psi | 52% | 2320 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 45,658 psi | 72% | 2572 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 36,985 psi | 58% | 2454 fps | 99.8% |
| Vihtavuori N560 | 58 gr | 84% | 41,220 psi | 65% | 2585 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 88% | 38,522 psi | 60% | 2520 fps | 95.1% |
| Vihtavuori N568 | <<locked>> | 96% | 43,918 psi | 69% | 2674 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,324 psi | 71% | 2533 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,543 psi | 75% | 2638 fps | 99.6% |
| Winchester StaBALL HD | 54.6 gr | 80% | 29,138 psi | 46% | 2398 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,809 psi | 55% | 2365 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 79 powders for 7 mm WSM loaded with the .284 | 175gr | Woodleigh PP SN. Hodgdon Retumbo delivers the highest muzzle velocity at 2,907 fps; across all powders the maximum-charge window runs from 1,696 fps to 2,907 fps. ADI AR 2217 gives the best case fill at 100 %, and 79 of the 79 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 175.0 gr projectile in 0.284" calls for a 1:11.5 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. Winchester StaBALL HD, Vihtavuori N560, Norma MRP rank at the top here: for 7 mm WSM with the .284 | 175gr | Woodleigh PP SN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-33, IMR 7977 Enduron, Vihtavuori N170 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.