Load Specifications
Load data in caliber 7 mm WSM with .284 | 156gr | Norma ORYX bullet and 79 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Norma MRP and Accurate MAGPRO.
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% | 55,477 psi | 87% | 2884 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 57,145 psi | 90% | 2920 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 57,638 psi | 90% | 3031 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 82% | 54,940 psi | 86% | 2831 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 57,638 psi | 90% | 2972 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 96% | 55,405 psi | 87% | 2976 fps | 98.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 46,369 psi | 73% | 2805 fps | 96.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,104 psi | 64% | 2759 fps | 98.4% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 54,230 psi | 85% | 2913 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 56,057 psi | 88% | 2854 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 57,682 psi | 90% | 2972 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 55,100 psi | 86% | 2936 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 57,188 psi | 90% | 2963 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 96% | 55,158 psi | 86% | 2969 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 98% | 56,173 psi | 88% | 2946 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,909 psi | 81% | 2949 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 56,492 psi | 89% | 3035 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 98% | 57,435 psi | 90% | 2933 fps | 95.9% |
| Bofors RP15 | <<locked>> | 98% | 54,056 psi | 85% | 2953 fps | 99% |
| Bofors RP3 | <<locked>> | 82% | 57,290 psi | 90% | 2874 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,703 psi | 75% | 2874 fps | 97.5% |
| Bofors RP5 | <<locked>> | 96% | 55,158 psi | 86% | 2969 fps | 99.2% |
| Bofors RP7 | <<locked>> | 86% | 56,130 psi | 88% | 2867 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 51,024 psi | 80% | 2897 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 82% | 57,290 psi | 90% | 2894 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 55,013 psi | 86% | 2917 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 84% | 54,244 psi | 85% | 2874 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 94% | 55,390 psi | 87% | 2913 fps | 97.7% |
| Hodgdon H4831 SC | <<locked>> | 94% | 54,346 psi | 85% | 2897 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 54,404 psi | 85% | 2844 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 50,763 psi | 80% | 3005 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 86% | 55,288 psi | 87% | 2953 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,941 psi | 58% | 1804 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 57,479 psi | 90% | 2904 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 86% | 57,638 psi | 90% | 2894 fps | 99.9% |
| IMR 4831 | <<locked>> | 90% | 57,203 psi | 90% | 2907 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 56,536 psi | 89% | 2897 fps | 98.1% |
| IMR 7828 SSC | <<locked>> | 98% | 56,710 psi | 89% | 3009 fps | 98.6% |
| Lovex S065 | <<locked>> | 86% | 54,636 psi | 86% | 2838 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 56,159 psi | 88% | 2884 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,808 psi | 83% | 2844 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 54,737 psi | 86% | 2904 fps | 98.9% |
| Norma 217ᴾ | <<locked>> | 100% | 36,680 psi | 57% | 2680 fps | 96.3% |
| Norma MRP | <<locked>> | 94% | 54,911 psi | 86% | 2995 fps | 99.8% |
| Norma URP | <<locked>> | 88% | 55,376 psi | 87% | 2904 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 57,653 psi | 90% | 3031 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 54,114 psi | 85% | 2904 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 55,666 psi | 87% | 2963 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,623 psi | 59% | 1847 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 56,840 psi | 89% | 2877 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 54,679 psi | 86% | 2927 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 57,072 psi | 89% | 2946 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 55,129 psi | 86% | 2969 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 51,285 psi | 80% | 3005 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 84% | 57,377 psi | 90% | 2867 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 55,390 psi | 87% | 2884 fps | 98.3% |
| Rottweil R 905 | <<locked>> | 94% | 56,594 psi | 89% | 2949 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 86% | 56,130 psi | 88% | 2867 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 86% | 54,636 psi | 86% | 2838 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 56,159 psi | 88% | 2884 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 55,230 psi | 87% | 2877 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 57,450 psi | 90% | 2740 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 57,537 psi | 90% | 2844 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 56,202 psi | 88% | 2946 fps | 99.3% |
| Somchem S355 | <<locked>> | 84% | 57,130 psi | 90% | 2864 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,985 psi | 89% | 2877 fps | 97.9% |
| Somchem S365 | <<locked>> | 90% | 55,535 psi | 87% | 2904 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 57,217 psi | 90% | 2923 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 84% | 54,795 psi | 86% | 2785 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 57,392 psi | 90% | 2897 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 56,492 psi | 89% | 2900 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 88% | 56,507 psi | 89% | 2904 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 54,868 psi | 86% | 2920 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 54,810 psi | 86% | 2986 fps | 97.9% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 54,418 psi | 85% | 2963 fps | 98.1% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 56,942 psi | 89% | 2858 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 55,245 psi | 87% | 2920 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 57,377 psi | 90% | 3084 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 57,305 psi | 90% | 2920 fps | 99.3% |
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% | 32,314 psi | 51% | 2441 fps | 96.1% |
| Accurate 4350 | <<locked>> | 80% | 43,555 psi | 68% | 2700 fps | 99.8% |
| Accurate MAGPRO | 65.8 gr | 90% | 46,601 psi | 73% | 2841 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 51,488 psi | 81% | 2779 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 38,798 psi | 61% | 2621 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 88% | 42,279 psi | 66% | 2726 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 98% | 43,308 psi | 68% | 2743 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 94% | 33,866 psi | 53% | 2575 fps | 95.5% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 39,088 psi | 61% | 2625 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,779 psi | 83% | 2805 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,626 psi | 65% | 2703 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,066 psi | 75% | 2828 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 38,725 psi | 61% | 2618 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 86% | 39,334 psi | 62% | 2674 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,038 psi | 49% | 2470 fps | 98.9% |
| Alliant Reloder-25 | <<locked>> | 84% | 30,835 psi | 48% | 2484 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,591 psi | 53% | 2595 fps | 98% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 54,114 psi | 85% | 2877 fps | 95.1% |
| Bofors RP15 | <<locked>> | 88% | 39,044 psi | 61% | 2664 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 53,635 psi | 84% | 2818 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 41,771 psi | 65% | 2756 fps | 95.9% |
| Bofors RP5 | <<locked>> | 86% | 39,334 psi | 62% | 2674 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 46,412 psi | 73% | 2700 fps | 98.5% |
| Hodgdon H1000 | <<locked>> | 94% | 41,539 psi | 65% | 2707 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 53,679 psi | 84% | 2838 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 45,136 psi | 71% | 2743 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 80% | 47,877 psi | 75% | 2762 fps | 98.2% |
| Hodgdon H4831 | <<locked>> | 88% | 45,237 psi | 71% | 2736 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 88% | 44,353 psi | 70% | 2717 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,363 psi | 62% | 2592 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 36,593 psi | 57% | 2684 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 44,309 psi | 69% | 2762 fps | 98.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,731 psi | 43% | 1614 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,076 psi | 66% | 2635 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,863 psi | 75% | 2730 fps | 99% |
| IMR 4831 | <<locked>> | 80% | 41,423 psi | 65% | 2644 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 86% | 44,150 psi | 69% | 2677 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 90% | 43,410 psi | 68% | 2766 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 45,513 psi | 71% | 2680 fps | 99.5% |
| Lovex S070 | <<locked>> | 80% | 43,816 psi | 69% | 2667 fps | 98.6% |
| Lovex S071 | <<locked>> | 84% | 31,691 psi | 50% | 2425 fps | 95.8% |
| Norma 204 | <<locked>> | 80% | 41,872 psi | 66% | 2667 fps | 96.3% |
| Norma 217 | <<locked>> | 98% | 34,272 psi | 54% | 2618 fps | 95.2% |
| Norma MRP | 57.5 gr | 80% | 33,605 psi | 53% | 2562 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 42,830 psi | 67% | 2687 fps | 99.7% |
| Ramshot Grand | <<locked>> | 88% | 40,350 psi | 63% | 2710 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 41,640 psi | 65% | 2680 fps | 98.7% |
| Ramshot Magnum | <<locked>> | 88% | 35,839 psi | 56% | 2585 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,210 psi | 44% | 1650 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 53,345 psi | 84% | 2825 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 51,010 psi | 80% | 2871 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,294 psi | 68% | 2717 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,655 psi | 65% | 2733 fps | 99.5% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 33,446 psi | 52% | 2592 fps | 95% |
| Rottweil R 903 | <<locked>> | 80% | 50,546 psi | 79% | 2769 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 42,975 psi | 67% | 2661 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 82% | 38,029 psi | 60% | 2602 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 46,412 psi | 73% | 2700 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,513 psi | 71% | 2680 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 80% | 43,816 psi | 69% | 2667 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,808 psi | 81% | 2825 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,836 psi | 80% | 2651 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,512 psi | 70% | 2628 fps | 98.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 37,681 psi | 59% | 2598 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 50,444 psi | 79% | 2762 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 43,874 psi | 69% | 2651 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 39,624 psi | 62% | 2644 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,274 psi | 57% | 2533 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 48,254 psi | 76% | 2690 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,237 psi | 69% | 2684 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 84% | 35,694 psi | 56% | 2513 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 43,642 psi | 68% | 2687 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 80% | 34,751 psi | 54% | 2546 fps | 98.9% |
| Vihtavuori N560 | 63.2 gr | 88% | 44,628 psi | 70% | 2799 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 94% | 44,454 psi | 70% | 2782 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,221 psi | 68% | 2648 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,368 psi | 71% | 2749 fps | 98.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,514 psi | 43% | 2470 fps | 98.8% |
| Winchester Supreme 780 | <<locked>> | 84% | 37,768 psi | 59% | 2569 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 | 156gr | Norma ORYX. Winchester StaBALL HD delivers the highest muzzle velocity at 3,084 fps; across all powders the maximum-charge window runs from 1,804 fps to 3,084 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 57–90 %, leaving at least 10 % headroom. The 156.0 gr projectile in 0.284" calls for a 1:13.5 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. Vihtavuori N560, Norma MRP, Accurate MAGPRO rank at the top here: for 7 mm WSM with the .284 | 156gr | Norma ORYX 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.