Load Specifications
Load data in caliber 7 mm WSM with .284 | 175gr | Nosler Partition bullet and 76 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Winchester StaBALL HD and IMR 7828 SSC.
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% | 57,711 psi | 90% | 2753 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 55,622 psi | 87% | 2733 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 56,260 psi | 88% | 2854 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 82% | 56,724 psi | 89% | 2690 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 56,289 psi | 88% | 2792 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 96% | 57,653 psi | 90% | 2851 fps | 99.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,167 psi | 75% | 2694 fps | 98.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,931 psi | 67% | 2661 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 88% | 56,463 psi | 88% | 2785 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 57,725 psi | 90% | 2802 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 55,709 psi | 87% | 2779 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 96% | 57,493 psi | 90% | 2844 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 55,114 psi | 86% | 2762 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 54,215 psi | 85% | 2822 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 55,172 psi | 86% | 2851 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 55,680 psi | 87% | 2756 fps | 96.6% |
| Bofors RP15 | <<locked>> | 98% | 56,391 psi | 88% | 2828 fps | 99.7% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,082 psi | 78% | 2766 fps | 98.8% |
| Bofors RP5 | <<locked>> | 96% | 57,493 psi | 90% | 2844 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 54,650 psi | 86% | 2684 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,243 psi | 83% | 2782 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 86% | 57,116 psi | 90% | 2785 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 56,420 psi | 88% | 2746 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 94% | 57,711 psi | 90% | 2792 fps | 98.8% |
| Hodgdon H4831 SC | <<locked>> | 94% | 56,536 psi | 89% | 2776 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 56,782 psi | 89% | 2710 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,113 psi | 83% | 2890 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 53,548 psi | 84% | 2766 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,999 psi | 58% | 1690 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,043 psi | 88% | 2723 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 84% | 55,898 psi | 88% | 2703 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 55,840 psi | 88% | 2726 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,158 psi | 86% | 2723 fps | 98.6% |
| IMR 7828 SSC | <<locked>> | 96% | 55,434 psi | 87% | 2831 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 56,681 psi | 89% | 2703 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 54,781 psi | 86% | 2700 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 55,129 psi | 86% | 2720 fps | 100% |
| Norma 204 | <<locked>> | 88% | 57,058 psi | 89% | 2779 fps | 99.7% |
| Norma 217ᴾ | <<locked>> | 100% | 38,435 psi | 60% | 2589 fps | 98.1% |
| Norma MRP | <<locked>> | 94% | 57,464 psi | 90% | 2867 fps | 100% |
| Norma URP | <<locked>> | 88% | 57,696 psi | 90% | 2769 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 56,101 psi | 88% | 2851 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 88% | 56,463 psi | 88% | 2776 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 54,259 psi | 85% | 2785 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,971 psi | 60% | 1732 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 57,217 psi | 90% | 2785 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 55,579 psi | 87% | 2759 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 57,508 psi | 90% | 2838 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 53,534 psi | 84% | 2887 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 48,472 psi | 76% | 2776 fps | 97.3% |
| Rottweil R 903 | <<locked>> | 82% | 55,854 psi | 88% | 2680 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 57,595 psi | 90% | 2762 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 92% | 55,100 psi | 86% | 2766 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 84% | 54,650 psi | 86% | 2684 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 56,681 psi | 89% | 2703 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 54,781 psi | 86% | 2700 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 57,217 psi | 90% | 2736 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,622 psi | 87% | 2556 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 55,811 psi | 87% | 2661 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 54,665 psi | 86% | 2762 fps | 99.6% |
| Somchem S355 | <<locked>> | 82% | 55,521 psi | 87% | 2674 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 55,274 psi | 87% | 2700 fps | 98.4% |
| Somchem S365 | <<locked>> | 88% | 54,360 psi | 85% | 2720 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 55,854 psi | 88% | 2743 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 84% | 56,724 psi | 89% | 2648 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 55,854 psi | 88% | 2710 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 55,129 psi | 86% | 2723 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 86% | 54,940 psi | 86% | 2717 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 57,377 psi | 90% | 2789 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 57,319 psi | 90% | 2867 fps | 99% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 56,811 psi | 89% | 2841 fps | 99.1% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 49,661 psi | 78% | 2779 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,274 psi | 87% | 2671 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 57,363 psi | 90% | 2789 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 56,217 psi | 88% | 2894 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 55,564 psi | 87% | 2736 fps | 99.6% |
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% | 33,750 psi | 53% | 2339 fps | 97.7% |
| Accurate 4350 | <<locked>> | 80% | 45,252 psi | 71% | 2579 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 42,453 psi | 67% | 2612 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 53,272 psi | 83% | 2641 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 37,927 psi | 59% | 2464 fps | 96.4% |
| ADI AR 2213 | <<locked>> | 84% | 38,653 psi | 61% | 2507 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 94% | 39,479 psi | 62% | 2523 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 90% | 31,183 psi | 49% | 2375 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,511 psi | 68% | 2585 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,082 psi | 78% | 2694 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,768 psi | 59% | 2457 fps | 96.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 33,663 psi | 53% | 2402 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,460 psi | 51% | 2369 fps | 99.8% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,384 psi | 44% | 2283 fps | 96.2% |
| Alliant Reloder-26 | 56.3 gr | 80% | 35,360 psi | 55% | 2500 fps | 99.3% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 49,371 psi | 77% | 2648 fps | 95.1% |
| Bofors RP15 | <<locked>> | 84% | 35,882 psi | 56% | 2451 fps | 95.7% |
| Bofors RP30 | <<locked>> | 90% | 35,839 psi | 56% | 2484 fps | 95% |
| Bofors RP5 | <<locked>> | 80% | 33,663 psi | 53% | 2402 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 48,167 psi | 75% | 2582 fps | 99.3% |
| Hodgdon H1000 | <<locked>> | 90% | 37,956 psi | 59% | 2493 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 46,963 psi | 74% | 2625 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 80% | 49,516 psi | 78% | 2638 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 84% | 41,133 psi | 64% | 2510 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 84% | 40,509 psi | 63% | 2497 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,944 psi | 64% | 2470 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 33,591 psi | 53% | 2470 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 46,267 psi | 73% | 2648 fps | 99.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,717 psi | 43% | 1506 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,656 psi | 68% | 2520 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,400 psi | 77% | 2602 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 43,149 psi | 68% | 2526 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 40,393 psi | 63% | 2461 fps | 95.3% |
| IMR 7828 SSC | 56.5 gr | 86% | 39,595 psi | 62% | 2539 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 47,050 psi | 74% | 2556 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 45,455 psi | 71% | 2549 fps | 99.4% |
| Lovex S071 | <<locked>> | 80% | 29,182 psi | 46% | 2228 fps | 96% |
| Norma 204 | <<locked>> | 80% | 43,584 psi | 68% | 2556 fps | 97.8% |
| Norma 217 | <<locked>> | 94% | 31,720 psi | 50% | 2421 fps | 95.4% |
| Norma MRP | <<locked>> | 80% | 35,128 psi | 55% | 2464 fps | 97.1% |
| Norma URP | <<locked>> | 80% | 44,556 psi | 70% | 2569 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 39,204 psi | 61% | 2546 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 43,395 psi | 68% | 2566 fps | 99.5% |
| Ramshot Magnum | <<locked>> | 84% | 32,547 psi | 51% | 2375 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,471 psi | 45% | 1545 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 53,185 psi | 83% | 2733 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,310 psi | 71% | 2602 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,482 psi | 68% | 2618 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 32,692 psi | 51% | 2448 fps | 96.3% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 41,669 psi | 65% | 2644 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 52,417 psi | 82% | 2635 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 39,218 psi | 61% | 2441 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 80% | 37,260 psi | 58% | 2444 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 80% | 48,167 psi | 75% | 2582 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,050 psi | 74% | 2556 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 45,455 psi | 71% | 2549 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 53,766 psi | 84% | 2687 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,388 psi | 82% | 2513 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,093 psi | 72% | 2510 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 36,927 psi | 58% | 2441 fps | 96.3% |
| Somchem S355 | <<locked>> | 80% | 52,112 psi | 82% | 2628 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 42,641 psi | 67% | 2487 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 41,553 psi | 65% | 2526 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,739 psi | 59% | 2428 fps | 97.4% |
| Vihtavuori N150 | <<locked>> | 80% | 49,966 psi | 78% | 2556 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,832 psi | 72% | 2559 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 32,605 psi | 51% | 2306 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 45,324 psi | 71% | 2566 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 36,419 psi | 57% | 2441 fps | 99.7% |
| Vihtavuori N560 | <<locked>> | 84% | 40,756 psi | 64% | 2575 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 90% | 40,625 psi | 64% | 2562 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 96% | 43,279 psi | 68% | 2661 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,846 psi | 70% | 2523 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,166 psi | 74% | 2628 fps | 99.6% |
| Winchester StaBALL HD | 54.1 gr | 80% | 28,863 psi | 45% | 2388 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,330 psi | 54% | 2352 fps | 95.1% |
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 76 powders for 7 mm WSM loaded with the .284 | 175gr | Nosler Partition. Winchester StaBALL HD delivers the highest muzzle velocity at 2,894 fps; across all powders the maximum-charge window runs from 1,690 fps to 2,894 fps. ADI AR 2217 gives the best case fill at 100 %, and 76 of the 76 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 1:10.5 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. Alliant Reloder-26, Winchester StaBALL HD, IMR 7828 SSC rank at the top here: for 7 mm WSM with the .284 | 175gr | Nosler Partition 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.