Load Specifications
Load data in caliber 7 mm WSM with .284 | 175gr | Barnes X S bullet and 74 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, 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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 94% | 56,768 psi | 89% | 2720 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 54,607 psi | 86% | 2694 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 54,447 psi | 85% | 2802 fps | 98% |
| ADI AR 2209 | <<locked>> | 90% | 54,404 psi | 85% | 2743 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 94% | 55,666 psi | 87% | 2802 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,995 psi | 78% | 2707 fps | 98.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 45,078 psi | 71% | 2684 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 54,752 psi | 86% | 2740 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 86% | 54,621 psi | 86% | 2740 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 55,535 psi | 87% | 2753 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 57,319 psi | 90% | 2782 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 94% | 55,956 psi | 88% | 2802 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 96% | 57,087 psi | 89% | 2769 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 56,014 psi | 88% | 2828 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 57,363 psi | 90% | 2861 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 57,043 psi | 89% | 2756 fps | 96.7% |
| Bofors RP15 | <<locked>> | 96% | 54,839 psi | 86% | 2785 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 52,272 psi | 82% | 2779 fps | 99% |
| Bofors RP5 | <<locked>> | 94% | 55,956 psi | 88% | 2802 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 56,594 psi | 89% | 2690 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,998 psi | 86% | 2789 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 84% | 55,405 psi | 87% | 2736 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 54,462 psi | 85% | 2694 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 92% | 55,680 psi | 87% | 2743 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 92% | 54,592 psi | 86% | 2723 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 55,274 psi | 87% | 2667 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,998 psi | 86% | 2900 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 55,579 psi | 87% | 2776 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,478 psi | 59% | 1680 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 57,638 psi | 90% | 2723 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 84% | 57,450 psi | 90% | 2703 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 54,781 psi | 86% | 2687 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 56,594 psi | 89% | 2720 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 96% | 57,261 psi | 90% | 2835 fps | 99.2% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 41,046 psi | 64% | 2598 fps | 96.5% |
| Lovex S065 | <<locked>> | 84% | 55,361 psi | 87% | 2661 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 56,826 psi | 89% | 2707 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 54,650 psi | 86% | 2687 fps | 100% |
| Norma 204 | <<locked>> | 86% | 54,998 psi | 86% | 2726 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 41,133 psi | 64% | 2625 fps | 98.6% |
| Norma MRP | <<locked>> | 92% | 55,651 psi | 87% | 2822 fps | 100% |
| Norma URP | <<locked>> | 86% | 56,014 psi | 88% | 2723 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 54,128 psi | 85% | 2799 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 86% | 54,694 psi | 86% | 2730 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 56,130 psi | 88% | 2792 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,348 psi | 60% | 1719 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 57,609 psi | 90% | 2766 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 55,477 psi | 87% | 2789 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 55,564 psi | 87% | 2897 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 50,618 psi | 79% | 2792 fps | 97.6% |
| Rottweil R 904 | <<locked>> | 90% | 55,782 psi | 87% | 2713 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 92% | 57,203 psi | 90% | 2776 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 84% | 56,594 psi | 89% | 2690 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 84% | 55,361 psi | 87% | 2661 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 56,826 psi | 89% | 2707 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 57,290 psi | 90% | 2552 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 54,520 psi | 85% | 2618 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 56,753 psi | 89% | 2772 fps | 99.7% |
| Somchem S355 | <<locked>> | 82% | 57,580 psi | 90% | 2677 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 57,159 psi | 90% | 2707 fps | 98.6% |
| Somchem S365 | <<locked>> | 88% | 56,521 psi | 89% | 2730 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 54,549 psi | 85% | 2703 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 82% | 55,274 psi | 87% | 2605 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 57,667 psi | 90% | 2713 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 57,130 psi | 90% | 2730 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 86% | 56,985 psi | 89% | 2723 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 56,405 psi | 88% | 2753 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 55,376 psi | 87% | 2815 fps | 98.7% |
| Vihtavuori N565 | <<locked>> | 98% | 55,637 psi | 87% | 2805 fps | 98.9% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 51,996 psi | 81% | 2799 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 56,855 psi | 89% | 2674 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 55,709 psi | 87% | 2743 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 54,302 psi | 85% | 2854 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 57,493 psi | 90% | 2743 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% | 36,941 psi | 58% | 2382 fps | 98.5% |
| Accurate 4350 | <<locked>> | 80% | 48,211 psi | 76% | 2598 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 41,916 psi | 66% | 2579 fps | 95% |
| ADI AR 2209 | <<locked>> | 80% | 39,784 psi | 62% | 2477 fps | 96.8% |
| ADI AR 2213 | <<locked>> | 84% | 40,509 psi | 63% | 2523 fps | 95.6% |
| ADI AR 2217 | <<locked>> | 92% | 39,160 psi | 61% | 2493 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 88% | 31,647 psi | 50% | 2362 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,234 psi | 63% | 2484 fps | 97% |
| Alliant Reloder-16 | <<locked>> | 80% | 45,426 psi | 71% | 2595 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 52,069 psi | 82% | 2703 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 39,885 psi | 63% | 2477 fps | 96.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 35,926 psi | 56% | 2431 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,882 psi | 55% | 2402 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,632 psi | 48% | 2323 fps | 97.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 37,869 psi | 59% | 2536 fps | 99.7% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 50,705 psi | 79% | 2651 fps | 95.2% |
| Bofors RP15 | <<locked>> | 82% | 35,853 psi | 56% | 2428 fps | 95.6% |
| Bofors RP30 | <<locked>> | 90% | 38,348 psi | 60% | 2520 fps | 95.8% |
| Bofors RP5 | <<locked>> | 80% | 35,926 psi | 56% | 2431 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 50,328 psi | 79% | 2592 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 88% | 37,536 psi | 59% | 2457 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 80% | 48,979 psi | 77% | 2638 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 80% | 51,169 psi | 80% | 2641 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 82% | 40,524 psi | 64% | 2474 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 84% | 42,351 psi | 66% | 2510 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,163 psi | 68% | 2487 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 84% | 33,692 psi | 53% | 2448 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 48,211 psi | 76% | 2661 fps | 99.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,210 psi | 44% | 1499 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 45,397 psi | 71% | 2526 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 51,169 psi | 80% | 2608 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 45,701 psi | 72% | 2546 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 42,177 psi | 66% | 2474 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 84% | 39,204 psi | 61% | 2507 fps | 95.3% |
| IMR 8133 Enduron | <<locked>> | 98% | 38,580 psi | 60% | 2546 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 49,313 psi | 77% | 2569 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 47,572 psi | 75% | 2562 fps | 99.6% |
| Lovex S071 | <<locked>> | 80% | 32,256 psi | 51% | 2274 fps | 97.1% |
| Norma 204 | <<locked>> | 80% | 45,513 psi | 71% | 2569 fps | 98.1% |
| Norma 217 | <<locked>> | 92% | 32,343 psi | 51% | 2411 fps | 95.5% |
| Norma MRP | 53.2 gr | 80% | 37,521 psi | 59% | 2497 fps | 97.8% |
| Norma URP | <<locked>> | 80% | 46,601 psi | 73% | 2579 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 38,870 psi | 61% | 2513 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 45,455 psi | 71% | 2579 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 82% | 32,880 psi | 52% | 2356 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,848 psi | 45% | 1535 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 47,558 psi | 75% | 2615 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 45,353 psi | 71% | 2628 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 82% | 30,806 psi | 48% | 2365 fps | 95% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 44,266 psi | 69% | 2674 fps | 95.9% |
| Rottweil R 904 | <<locked>> | 80% | 41,278 psi | 65% | 2461 fps | 96.1% |
| Rottweil R 905 | <<locked>> | 80% | 39,436 psi | 62% | 2467 fps | 97% |
| Rottweil R 907 | <<locked>> | 80% | 50,328 psi | 79% | 2592 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,313 psi | 77% | 2569 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 47,572 psi | 75% | 2562 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 54,085 psi | 85% | 2513 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,240 psi | 76% | 2520 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,102 psi | 61% | 2461 fps | 96.8% |
| Somchem S355 | <<locked>> | 80% | 54,447 psi | 85% | 2635 fps | 100% |
| Somchem S361 | <<locked>> | 80% | 41,843 psi | 66% | 2448 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 43,830 psi | 69% | 2543 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,161 psi | 63% | 2454 fps | 97.9% |
| Vihtavuori N150 | <<locked>> | 80% | 51,924 psi | 81% | 2559 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 48,008 psi | 75% | 2572 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 34,998 psi | 55% | 2336 fps | 96% |
| Vihtavuori N550 | <<locked>> | 80% | 47,514 psi | 74% | 2579 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 39,291 psi | 62% | 2474 fps | 99.9% |
| Vihtavuori N560 | 54.5 gr | 82% | 40,089 psi | 63% | 2536 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 88% | 40,538 psi | 64% | 2536 fps | 95.6% |
| Vihtavuori N568 | <<locked>> | 96% | 45,585 psi | 71% | 2684 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 46,818 psi | 73% | 2533 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 49,182 psi | 77% | 2641 fps | 99.7% |
| Winchester StaBALL HD | 52.7 gr | 80% | 31,459 psi | 49% | 2438 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,680 psi | 57% | 2382 fps | 95.9% |
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 74 powders for 7 mm WSM loaded with the .284 | 175gr | Barnes X S. Hodgdon Retumbo delivers the highest muzzle velocity at 2,900 fps; across all powders the maximum-charge window runs from 1,680 fps to 2,900 fps. ADI AR 2217 gives the best case fill at 100 %, and 74 of the 74 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.284" calls for a 1:9.5 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, Norma MRP, Vihtavuori N560 rank at the top here: for 7 mm WSM with the .284 | 175gr | Barnes X S 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.