Load Specifications
Load data in caliber 7 mm WSM with .284 | 170gr | Norma ORYX 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, 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% | 54,781 psi | 86% | 2759 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 56,246 psi | 88% | 2789 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 57,087 psi | 89% | 2910 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 82% | 57,000 psi | 89% | 2740 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 56,913 psi | 89% | 2848 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 94% | 54,578 psi | 86% | 2851 fps | 98.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,863 psi | 77% | 2753 fps | 98.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,526 psi | 68% | 2713 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 88% | 57,116 psi | 90% | 2841 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,433 psi | 85% | 2802 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 56,275 psi | 88% | 2835 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,607 psi | 86% | 2848 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 96% | 55,637 psi | 87% | 2818 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 54,998 psi | 86% | 2877 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 56,115 psi | 88% | 2907 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 56,391 psi | 88% | 2812 fps | 96.7% |
| Bofors RP15 | <<locked>> | 98% | 57,261 psi | 90% | 2887 fps | 99.7% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,865 psi | 80% | 2818 fps | 98.8% |
| Bofors RP5 | <<locked>> | 94% | 54,607 psi | 86% | 2848 fps | 99.6% |
| Bofors RP7 | <<locked>> | 84% | 55,071 psi | 86% | 2736 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,867 psi | 84% | 2838 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 84% | 54,172 psi | 85% | 2789 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 56,724 psi | 89% | 2799 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 92% | 54,447 psi | 85% | 2789 fps | 98.3% |
| Hodgdon H4831 SC | <<locked>> | 94% | 57,203 psi | 90% | 2831 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 57,305 psi | 90% | 2762 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,809 psi | 84% | 2946 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 54,346 psi | 85% | 2825 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,130 psi | 58% | 1729 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,521 psi | 89% | 2776 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,289 psi | 88% | 2756 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 56,376 psi | 88% | 2779 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,637 psi | 87% | 2776 fps | 98.6% |
| IMR 7828 SSC | <<locked>> | 96% | 56,057 psi | 88% | 2884 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 57,014 psi | 89% | 2756 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 55,143 psi | 86% | 2753 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 55,854 psi | 88% | 2776 fps | 100% |
| Norma 204 | <<locked>> | 88% | 57,638 psi | 90% | 2831 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 39,146 psi | 61% | 2641 fps | 98.1% |
| Norma MRP | <<locked>> | 92% | 54,215 psi | 85% | 2864 fps | 100% |
| Norma URP | <<locked>> | 86% | 54,462 psi | 85% | 2769 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 56,942 psi | 89% | 2910 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 88% | 57,087 psi | 89% | 2831 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 55,187 psi | 86% | 2844 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,869 psi | 59% | 1768 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 56,246 psi | 88% | 2815 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,433 psi | 85% | 2841 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,505 psi | 85% | 2946 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,342 psi | 77% | 2831 fps | 97.3% |
| Rottweil R 903 | <<locked>> | 82% | 56,420 psi | 88% | 2736 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 54,491 psi | 85% | 2762 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 92% | 55,985 psi | 88% | 2828 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 84% | 55,071 psi | 86% | 2736 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 57,014 psi | 89% | 2756 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 55,143 psi | 86% | 2753 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 56,260 psi | 88% | 2608 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,304 psi | 88% | 2713 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,550 psi | 87% | 2822 fps | 99.7% |
| Somchem S355 | <<locked>> | 82% | 56,057 psi | 88% | 2730 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 56,086 psi | 88% | 2759 fps | 98.5% |
| Somchem S365 | <<locked>> | 88% | 54,926 psi | 86% | 2772 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 56,362 psi | 88% | 2795 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 84% | 57,159 psi | 90% | 2700 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 56,420 psi | 88% | 2762 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 55,782 psi | 87% | 2776 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 86% | 55,405 psi | 87% | 2769 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,476 psi | 85% | 2792 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,099 psi | 85% | 2861 fps | 98.5% |
| Vihtavuori N565 | <<locked>> | 98% | 53,969 psi | 85% | 2844 fps | 98.7% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 50,633 psi | 79% | 2838 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,767 psi | 87% | 2723 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,404 psi | 85% | 2792 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 57,479 psi | 90% | 2956 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 56,188 psi | 88% | 2792 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% | 34,200 psi | 54% | 2388 fps | 97.7% |
| Accurate 4350 | <<locked>> | 80% | 45,861 psi | 72% | 2631 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 42,989 psi | 67% | 2664 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 53,679 psi | 84% | 2694 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 38,218 psi | 60% | 2510 fps | 96.3% |
| ADI AR 2213 | <<locked>> | 84% | 38,914 psi | 61% | 2552 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 94% | 40,074 psi | 63% | 2575 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 90% | 31,575 psi | 49% | 2425 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,932 psi | 69% | 2635 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,778 psi | 80% | 2749 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,261 psi | 60% | 2507 fps | 96.4% |
| Alliant Reloder-22 | <<locked>> | 82% | 36,535 psi | 57% | 2507 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,793 psi | 51% | 2415 fps | 99.8% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,601 psi | 45% | 2326 fps | 96.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,868 psi | 56% | 2549 fps | 99.3% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 49,792 psi | 78% | 2700 fps | 95.1% |
| Bofors RP15 | <<locked>> | 84% | 36,260 psi | 57% | 2500 fps | 95.7% |
| Bofors RP30 | <<locked>> | 90% | 36,376 psi | 57% | 2536 fps | 95% |
| Bofors RP5 | <<locked>> | 82% | 36,535 psi | 57% | 2507 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 48,486 psi | 76% | 2631 fps | 99.3% |
| Hodgdon H1000 | <<locked>> | 90% | 38,435 psi | 60% | 2543 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 47,413 psi | 74% | 2677 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 80% | 50,009 psi | 78% | 2690 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 84% | 41,611 psi | 65% | 2562 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 84% | 40,814 psi | 64% | 2546 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,597 psi | 65% | 2526 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 33,968 psi | 53% | 2516 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 46,949 psi | 74% | 2703 fps | 99.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,746 psi | 43% | 1542 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,947 psi | 69% | 2566 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,937 psi | 78% | 2657 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 43,729 psi | 69% | 2579 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 40,770 psi | 64% | 2510 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 86% | 40,030 psi | 63% | 2592 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 47,384 psi | 74% | 2605 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 45,730 psi | 72% | 2598 fps | 99.4% |
| Lovex S071 | <<locked>> | 80% | 29,573 psi | 46% | 2274 fps | 95.9% |
| Norma 204 | <<locked>> | 80% | 44,005 psi | 69% | 2605 fps | 97.7% |
| Norma 217 | <<locked>> | 94% | 32,126 psi | 50% | 2467 fps | 95.3% |
| Norma MRP | 56.5 gr | 80% | 35,679 psi | 56% | 2513 fps | 97.1% |
| Norma URP | <<locked>> | 80% | 44,918 psi | 70% | 2615 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 39,784 psi | 62% | 2598 fps | 96% |
| Ramshot Hunter | <<locked>> | 80% | 43,830 psi | 69% | 2615 fps | 99.5% |
| Ramshot Magnum | <<locked>> | 84% | 33,069 psi | 52% | 2421 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,471 psi | 45% | 1581 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,730 psi | 72% | 2651 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,801 psi | 69% | 2664 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 33,025 psi | 52% | 2493 fps | 96.2% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 42,366 psi | 66% | 2700 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 52,794 psi | 83% | 2684 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 39,726 psi | 62% | 2493 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 80% | 37,565 psi | 59% | 2490 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 80% | 48,486 psi | 76% | 2631 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,384 psi | 74% | 2605 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 45,730 psi | 72% | 2598 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,895 psi | 83% | 2566 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,398 psi | 73% | 2559 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,246 psi | 58% | 2487 fps | 96.2% |
| Somchem S355 | <<locked>> | 80% | 52,518 psi | 82% | 2677 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 43,033 psi | 67% | 2536 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 41,930 psi | 66% | 2575 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,145 psi | 60% | 2477 fps | 97.3% |
| Vihtavuori N150 | <<locked>> | 80% | 50,299 psi | 79% | 2605 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,369 psi | 73% | 2612 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 33,011 psi | 52% | 2352 fps | 95.1% |
| Vihtavuori N550 | <<locked>> | 80% | 45,774 psi | 72% | 2615 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 36,956 psi | 58% | 2490 fps | 99.7% |
| Vihtavuori N560 | 59.3 gr | 84% | 41,176 psi | 65% | 2621 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 90% | 41,089 psi | 64% | 2612 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 96% | 43,859 psi | 69% | 2713 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,339 psi | 71% | 2572 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,630 psi | 75% | 2680 fps | 99.5% |
| Winchester StaBALL HD | 55.9 gr | 80% | 29,211 psi | 46% | 2434 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,882 psi | 55% | 2405 fps | 95.2% |
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 | 170gr | Norma ORYX. Winchester StaBALL HD delivers the highest muzzle velocity at 2,956 fps; across all powders the maximum-charge window runs from 1,729 fps to 2,956 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 170.0 gr projectile in 0.284" calls for a 1:12.5 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 | 170gr | Norma ORYX 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.