Load Specifications
Load data in caliber 7 mm WSM with .284 | 150gr | Osprey Virtus bullet and 94 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Winchester 760.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 55,274 psi | 87% | 2792 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 56,985 psi | 89% | 2877 fps | 99.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 55,056 psi | 86% | 2920 fps | 99.8% |
| Accurate 4064 | <<locked>> | 84% | 55,927 psi | 88% | 2851 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 57,159 psi | 90% | 2969 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 53,664 psi | 84% | 3005 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 86% | 56,304 psi | 88% | 2890 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 54,752 psi | 86% | 2966 fps | 98.5% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 56,057 psi | 88% | 3015 fps | 97.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 55,883 psi | 88% | 3018 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 57,014 psi | 89% | 2910 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 57,203 psi | 90% | 2933 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 54,563 psi | 86% | 2976 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 55,709 psi | 87% | 2995 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 57,682 psi | 90% | 3009 fps | 98.9% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 55,027 psi | 86% | 3009 fps | 98.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 51,953 psi | 81% | 2936 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,875 psi | 70% | 2861 fps | 99.5% |
| Alliant Reloder-26 | <<locked>> | 98% | 55,840 psi | 88% | 3077 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,343 psi | 79% | 2930 fps | 97.8% |
| Bofors RP3 | <<locked>> | 84% | 54,157 psi | 85% | 2874 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 55,027 psi | 86% | 3009 fps | 98.7% |
| Bofors RP7 | <<locked>> | 90% | 57,450 psi | 90% | 2920 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 84% | 54,621 psi | 86% | 2894 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 55,666 psi | 87% | 2969 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 88% | 55,593 psi | 87% | 2930 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 98% | 56,202 psi | 88% | 2959 fps | 97% |
| Hodgdon H4831 SC | <<locked>> | 98% | 55,013 psi | 86% | 2940 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 54,636 psi | 86% | 2894 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 56,101 psi | 88% | 2930 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,932 psi | 69% | 2897 fps | 97.1% |
| Hodgdon Superformance | <<locked>> | 90% | 56,072 psi | 88% | 3009 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,463 psi | 57% | 1808 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 56,768 psi | 89% | 2894 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 55,854 psi | 88% | 2874 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 54,853 psi | 86% | 2858 fps | 99.4% |
| IMR 4350 | <<locked>> | 92% | 54,955 psi | 86% | 2900 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 88% | 55,666 psi | 87% | 2897 fps | 99.4% |
| IMR 4831 | <<locked>> | 94% | 57,595 psi | 90% | 2959 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,303 psi | 87% | 2910 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 57,508 psi | 90% | 2943 fps | 97.4% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,447 psi | 84% | 2989 fps | 97.3% |
| Lovex S060 | <<locked>> | 82% | 57,130 psi | 90% | 2854 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 55,883 psi | 88% | 2864 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 55,622 psi | 87% | 2890 fps | 99.9% |
| Lovex S070 | <<locked>> | 92% | 57,000 psi | 89% | 2933 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,585 psi | 71% | 2766 fps | 98.9% |
| Norma 201 | <<locked>> | 82% | 57,029 psi | 89% | 2874 fps | 100% |
| Norma 203B | <<locked>> | 84% | 56,463 psi | 88% | 2920 fps | 100% |
| Norma 204 | <<locked>> | 92% | 55,912 psi | 88% | 2956 fps | 98.5% |
| Norma MRP | <<locked>> | 98% | 54,491 psi | 85% | 3035 fps | 99.5% |
| Norma URP | <<locked>> | 92% | 55,956 psi | 88% | 2956 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 57,740 psi | 90% | 2949 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 53,708 psi | 84% | 3002 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 92% | 54,868 psi | 86% | 2959 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,022 psi | 75% | 2874 fps | 98.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,057 psi | 58% | 1850 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 54,607 psi | 86% | 2881 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 55,347 psi | 87% | 2986 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 57,377 psi | 90% | 2995 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 55,811 psi | 87% | 3025 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 43,947 psi | 69% | 2890 fps | 98.2% |
| Rottweil R 902 | <<locked>> | 84% | 57,711 psi | 90% | 2874 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 54,288 psi | 85% | 2871 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 56,246 psi | 88% | 2933 fps | 97.7% |
| Rottweil R 905 | <<locked>> | 98% | 56,840 psi | 89% | 2992 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 90% | 57,450 psi | 90% | 2920 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 55,622 psi | 87% | 2890 fps | 99.9% |
| Shooters World Precision | <<locked>> | 84% | 55,883 psi | 88% | 2864 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 57,000 psi | 89% | 2933 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 56,333 psi | 88% | 2936 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 57,116 psi | 90% | 2907 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,434 psi | 87% | 2756 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 55,361 psi | 87% | 2844 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 56,362 psi | 88% | 2986 fps | 98.8% |
| Somchem S335 | <<locked>> | 82% | 57,493 psi | 90% | 2795 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 54,302 psi | 85% | 2867 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 54,476 psi | 85% | 2871 fps | 96.6% |
| Somchem S365 | <<locked>> | 94% | 55,434 psi | 87% | 2956 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 57,522 psi | 90% | 2966 fps | 99.4% |
| Vihtavuori N135 | <<locked>> | 82% | 54,810 psi | 86% | 2785 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,056 psi | 86% | 2799 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 55,738 psi | 87% | 2841 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 54,346 psi | 85% | 2894 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,200 psi | 83% | 2887 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 84% | 56,637 psi | 89% | 2844 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 57,058 psi | 89% | 2953 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 54,389 psi | 85% | 2963 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 54,752 psi | 86% | 3022 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 53,896 psi | 84% | 2858 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 55,941 psi | 88% | 2972 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 47,253 psi | 74% | 2999 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 57,232 psi | 90% | 2913 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 53,838 psi | 84% | 2904 fps | 98.3% |
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 2495 | <<locked>> | 80% | 51,677 psi | 81% | 2743 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 49,864 psi | 78% | 2762 fps | 98.2% |
| Accurate 3100 | <<locked>> | 86% | 33,649 psi | 53% | 2516 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 49,008 psi | 77% | 2753 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,594 psi | 59% | 2625 fps | 98.6% |
| Accurate MAGPRO | <<locked>> | 96% | 49,835 psi | 78% | 2940 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 46,804 psi | 73% | 2736 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 41,814 psi | 66% | 2723 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 94% | 45,701 psi | 72% | 2828 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 51,895 psi | 81% | 2956 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,108 psi | 74% | 2756 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,488 psi | 79% | 2831 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,695 psi | 57% | 2635 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,858 psi | 66% | 2762 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 41,481 psi | 65% | 2717 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 92% | 41,887 psi | 66% | 2769 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,643 psi | 42% | 2379 fps | 96.3% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,416 psi | 51% | 2562 fps | 95.7% |
| Alliant Reloder-26 | 56.9 gr | 82% | 30,603 psi | 48% | 2552 fps | 95.8% |
| Bofors RP15 | <<locked>> | 94% | 41,075 psi | 64% | 2749 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 47,340 psi | 74% | 2769 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 41,887 psi | 66% | 2769 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 41,655 psi | 65% | 2641 fps | 96.6% |
| Hodgdon H380 | <<locked>> | 80% | 47,848 psi | 75% | 2782 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 39,697 psi | 62% | 2671 fps | 96.7% |
| Hodgdon H4350 | <<locked>> | 80% | 42,627 psi | 67% | 2697 fps | 96.2% |
| Hodgdon H4831 | <<locked>> | 94% | 49,037 psi | 77% | 2838 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 48,022 psi | 75% | 2822 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,272 psi | 54% | 2526 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 52,547 psi | 82% | 2877 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 41,089 psi | 64% | 2828 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 38,696 psi | 61% | 2684 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,108 psi | 42% | 1614 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 53,185 psi | 83% | 2841 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,197 psi | 77% | 2769 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,445 psi | 81% | 2802 fps | 99% |
| IMR 4350 | <<locked>> | 80% | 37,420 psi | 59% | 2569 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,120 psi | 68% | 2674 fps | 97.5% |
| IMR 4831 | <<locked>> | 80% | 36,114 psi | 57% | 2575 fps | 98.3% |
| IMR 4895 | <<locked>> | 80% | 51,822 psi | 81% | 2858 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 47,659 psi | 75% | 2779 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 96% | 46,601 psi | 73% | 2861 fps | 95.5% |
| Lovex S060 | <<locked>> | 80% | 53,882 psi | 84% | 2808 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 49,327 psi | 77% | 2766 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,451 psi | 63% | 2618 fps | 98.1% |
| Lovex S070 | <<locked>> | 80% | 38,740 psi | 61% | 2598 fps | 96.6% |
| Lovex S071 | <<locked>> | 90% | 32,750 psi | 51% | 2493 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 53,417 psi | 84% | 2822 fps | 100% |
| Norma 203B | <<locked>> | 80% | 49,806 psi | 78% | 2815 fps | 100% |
| Norma 204 | <<locked>> | 84% | 42,293 psi | 66% | 2710 fps | 95.5% |
| Norma MRP | 58 gr | 86% | 35,694 psi | 56% | 2654 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 37,478 psi | 59% | 2618 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 80% | 50,183 psi | 79% | 2838 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 46,601 psi | 73% | 2874 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 36,463 psi | 57% | 2608 fps | 96.6% |
| Ramshot Magnum | <<locked>> | 94% | 38,348 psi | 60% | 2677 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,514 psi | 43% | 1650 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,761 psi | 75% | 2762 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,512 psi | 70% | 2818 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,376 psi | 59% | 2638 fps | 98.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,303 psi | 57% | 2648 fps | 97.7% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 38,029 psi | 60% | 2746 fps | 96.1% |
| Rottweil R 902 | <<locked>> | 80% | 50,937 psi | 80% | 2776 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,570 psi | 70% | 2713 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 46,340 psi | 73% | 2762 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 88% | 40,538 psi | 64% | 2697 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 41,655 psi | 65% | 2641 fps | 96.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,451 psi | 63% | 2618 fps | 98.1% |
| Shooters World Precision | <<locked>> | 80% | 49,327 psi | 77% | 2766 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,740 psi | 61% | 2598 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,093 psi | 72% | 2772 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 53,592 psi | 84% | 2858 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,093 psi | 72% | 2621 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,726 psi | 62% | 2566 fps | 96.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 40,161 psi | 63% | 2690 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 53,969 psi | 85% | 2749 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 44,831 psi | 70% | 2710 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 47,485 psi | 74% | 2753 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 33,939 psi | 53% | 2575 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 38,377 psi | 60% | 2621 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 80% | 51,503 psi | 81% | 2736 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,605 psi | 81% | 2753 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,931 psi | 67% | 2641 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,986 psi | 61% | 2621 fps | 98.7% |
| Vihtavuori N165 | <<locked>> | 90% | 37,869 psi | 59% | 2598 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 49,835 psi | 78% | 2746 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,334 psi | 60% | 2618 fps | 98.4% |
| Vihtavuori N555 | <<locked>> | 80% | 29,515 psi | 46% | 2457 fps | 96.5% |
| Vihtavuori N560 | <<locked>> | 94% | 47,587 psi | 75% | 2897 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,058 psi | 60% | 2589 fps | 99.8% |
| Winchester 760 | 53.1 gr | 80% | 39,885 psi | 63% | 2677 fps | 96.8% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,106 psi | 39% | 2408 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 53,664 psi | 84% | 2861 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 40,712 psi | 64% | 2667 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 94 powders for 7 mm WSM loaded with the .284 | 150gr | Osprey Virtus. Alliant Reloder-26 delivers the highest muzzle velocity at 3,077 fps; across all powders the maximum-charge window runs from 1,808 fps to 3,077 fps. Accurate 3100 gives the best case fill at 100 %, and 94 of the 94 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 150.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-22 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, Norma MRP, Winchester 760 rank at the top here: for 7 mm WSM with the .284 | 150gr | Osprey Virtus 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.