Load Specifications
Load data in caliber 7 mm WSM with .284 | 150gr | Norma FMJ SemiP bullet and 82 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Alliant Reloder-26 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 2700 | <<locked>> | 82% | 57,377 psi | 90% | 2897 fps | 99.4% |
| Accurate 3100 | <<locked>> | 98% | 56,942 psi | 89% | 2956 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 57,145 psi | 90% | 2874 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,766 psi | 86% | 2940 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 55,419 psi | 87% | 3048 fps | 97% |
| ADI AR 2208 | <<locked>> | 84% | 56,623 psi | 89% | 2907 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,651 psi | 87% | 2992 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 98% | 57,000 psi | 89% | 3048 fps | 98.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,421 psi | 62% | 2762 fps | 97.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,302 psi | 85% | 2881 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,593 psi | 87% | 2999 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 56,782 psi | 89% | 3015 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,998 psi | 86% | 2979 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 98% | 56,550 psi | 89% | 3045 fps | 99.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 57,537 psi | 90% | 3018 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,705 psi | 78% | 2963 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,998 psi | 85% | 3054 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,405 psi | 87% | 3022 fps | 98.9% |
| Bofors RP3 | <<locked>> | 82% | 55,129 psi | 86% | 2894 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,469 psi | 71% | 2881 fps | 96.5% |
| Bofors RP5 | <<locked>> | 98% | 56,550 psi | 89% | 3045 fps | 99.1% |
| Bofors RP7 | <<locked>> | 86% | 54,462 psi | 85% | 2890 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,979 psi | 77% | 2904 fps | 97.5% |
| Hodgdon H380 | <<locked>> | 82% | 55,245 psi | 87% | 2913 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 56,739 psi | 89% | 2995 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 86% | 56,057 psi | 88% | 2953 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 96% | 57,290 psi | 90% | 2992 fps | 97.6% |
| Hodgdon H4831 SC | <<locked>> | 96% | 55,912 psi | 88% | 2969 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 55,898 psi | 88% | 2920 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,588 psi | 76% | 3009 fps | 98.7% |
| Hodgdon Superformance | <<locked>> | 88% | 57,290 psi | 90% | 3035 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,854 psi | 58% | 1837 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 56,130 psi | 88% | 2890 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,753 psi | 87% | 2927 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 56,014 psi | 88% | 2917 fps | 99.6% |
| IMR 4831 | <<locked>> | 90% | 55,230 psi | 87% | 2933 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,839 psi | 86% | 2917 fps | 97.3% |
| IMR 7828 SSC | <<locked>> | 98% | 54,694 psi | 86% | 3022 fps | 97.9% |
| Lovex S062 | <<locked>> | 82% | 56,434 psi | 88% | 2881 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 56,217 psi | 88% | 2910 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 57,740 psi | 90% | 2956 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,546 psi | 79% | 2858 fps | 99.7% |
| Norma 203B | <<locked>> | 82% | 57,145 psi | 90% | 2940 fps | 100% |
| Norma 204 | <<locked>> | 90% | 56,550 psi | 89% | 2982 fps | 98.9% |
| Norma MRP | <<locked>> | 96% | 56,463 psi | 88% | 3071 fps | 99.8% |
| Norma URP | <<locked>> | 90% | 56,898 psi | 89% | 2976 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,172 psi | 86% | 3041 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 90% | 55,782 psi | 87% | 2982 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,142 psi | 83% | 2972 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,507 psi | 59% | 1877 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,172 psi | 86% | 2900 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 56,318 psi | 88% | 3005 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,723 psi | 86% | 2963 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 56,840 psi | 89% | 3051 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,023 psi | 77% | 3009 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 84% | 55,506 psi | 87% | 2897 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 57,029 psi | 89% | 2959 fps | 98.2% |
| Rottweil R 905 | <<locked>> | 94% | 54,607 psi | 86% | 2969 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 86% | 54,462 psi | 85% | 2890 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,217 psi | 88% | 2910 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 56,434 psi | 88% | 2881 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 57,740 psi | 90% | 2956 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 57,029 psi | 89% | 2956 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,854 psi | 88% | 2772 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,825 psi | 87% | 2864 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 57,653 psi | 90% | 3018 fps | 99.2% |
| Somchem S355 | <<locked>> | 84% | 55,114 psi | 86% | 2887 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,216 psi | 87% | 2897 fps | 97.2% |
| Somchem S365 | <<locked>> | 92% | 56,898 psi | 89% | 2979 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,984 psi | 86% | 2940 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 86% | 56,434 psi | 88% | 2861 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,245 psi | 87% | 2917 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,520 psi | 85% | 2917 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 82% | 57,029 psi | 89% | 2858 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 54,418 psi | 85% | 2920 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 56,130 psi | 88% | 2992 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 56,420 psi | 88% | 3061 fps | 97.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,982 psi | 81% | 2969 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,810 psi | 86% | 2881 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 56,971 psi | 89% | 2999 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,128 psi | 85% | 3100 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,042 psi | 86% | 2933 fps | 98.8% |
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 2700 | <<locked>> | 80% | 53,548 psi | 84% | 2838 fps | 99.1% |
| Accurate 3100 | <<locked>> | 82% | 33,011 psi | 52% | 2500 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 53,795 psi | 84% | 2825 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,800 psi | 66% | 2713 fps | 99.5% |
| Accurate MAGPRO | 66.9 gr | 92% | 47,877 psi | 75% | 2910 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 50,212 psi | 79% | 2805 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 40,016 psi | 63% | 2694 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 92% | 46,702 psi | 73% | 2864 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 96% | 34,780 psi | 55% | 2638 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,097 psi | 80% | 2831 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,059 psi | 63% | 2720 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,919 psi | 72% | 2844 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,871 psi | 62% | 2687 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 88% | 40,437 psi | 63% | 2743 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,762 psi | 47% | 2477 fps | 98.1% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,531 psi | 49% | 2543 fps | 95.8% |
| Alliant Reloder-26 | 58.9 gr | 80% | 32,097 psi | 50% | 2598 fps | 96.9% |
| Bofors RP15 | <<locked>> | 90% | 39,900 psi | 63% | 2730 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 51,851 psi | 81% | 2844 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 42,627 psi | 67% | 2818 fps | 95.6% |
| Bofors RP5 | <<locked>> | 88% | 40,437 psi | 63% | 2743 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 44,962 psi | 70% | 2720 fps | 97.8% |
| Hodgdon H1000 | <<locked>> | 96% | 42,888 psi | 67% | 2776 fps | 95.7% |
| Hodgdon H380 | <<locked>> | 80% | 51,721 psi | 81% | 2858 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 43,526 psi | 68% | 2759 fps | 98% |
| Hodgdon H4350 | <<locked>> | 80% | 46,325 psi | 73% | 2779 fps | 97.5% |
| Hodgdon H4831 | <<locked>> | 90% | 46,659 psi | 73% | 2808 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 90% | 45,759 psi | 72% | 2789 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,840 psi | 59% | 2608 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 92% | 37,405 psi | 59% | 2746 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 42,554 psi | 67% | 2776 fps | 97.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,615 psi | 43% | 1644 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,823 psi | 83% | 2838 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,683 psi | 64% | 2651 fps | 96.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,441 psi | 73% | 2749 fps | 98.5% |
| IMR 4831 | <<locked>> | 80% | 39,856 psi | 62% | 2661 fps | 99.2% |
| IMR 4955 Enduron | <<locked>> | 88% | 45,411 psi | 71% | 2746 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 92% | 44,527 psi | 70% | 2831 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 53,156 psi | 83% | 2831 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,092 psi | 69% | 2700 fps | 99% |
| Lovex S070 | <<locked>> | 80% | 42,351 psi | 66% | 2687 fps | 97.9% |
| Lovex S071 | <<locked>> | 86% | 32,372 psi | 51% | 2484 fps | 95.6% |
| Norma 203B | <<locked>> | 80% | 53,824 psi | 84% | 2887 fps | 100% |
| Norma 204 | <<locked>> | 80% | 40,205 psi | 63% | 2677 fps | 95.2% |
| Norma MRP | 58.6 gr | 82% | 34,505 psi | 54% | 2628 fps | 95% |
| Norma URP | <<locked>> | 80% | 41,234 psi | 65% | 2703 fps | 99.3% |
| Ramshot Grand | <<locked>> | 92% | 44,570 psi | 70% | 2844 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 39,914 psi | 63% | 2690 fps | 97.9% |
| Ramshot Magnum | <<locked>> | 90% | 36,883 psi | 58% | 2651 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,065 psi | 44% | 1680 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,735 psi | 81% | 2844 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,733 psi | 76% | 2890 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,582 psi | 65% | 2733 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,914 psi | 63% | 2740 fps | 98.9% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 36,869 psi | 58% | 2730 fps | 96.1% |
| Rottweil R 903 | <<locked>> | 80% | 48,820 psi | 77% | 2792 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 44,164 psi | 69% | 2730 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 84% | 39,160 psi | 61% | 2674 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 44,962 psi | 70% | 2720 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,092 psi | 69% | 2700 fps | 99% |
| Shooters World Precision | <<locked>> | 80% | 53,156 psi | 83% | 2831 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,351 psi | 66% | 2687 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,835 psi | 78% | 2844 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,371 psi | 77% | 2680 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,120 psi | 68% | 2644 fps | 98% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,812 psi | 61% | 2667 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 48,820 psi | 77% | 2789 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 48,414 psi | 76% | 2782 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 37,913 psi | 59% | 2661 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 37,115 psi | 58% | 2595 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 80% | 46,688 psi | 73% | 2713 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,670 psi | 67% | 2703 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 86% | 36,709 psi | 58% | 2579 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 53,505 psi | 84% | 2808 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,916 psi | 66% | 2700 fps | 99.3% |
| Vihtavuori N555 | <<locked>> | 80% | 33,214 psi | 52% | 2552 fps | 98.1% |
| Vihtavuori N560 | <<locked>> | 90% | 45,847 psi | 72% | 2871 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 96% | 45,382 psi | 71% | 2844 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,553 psi | 65% | 2664 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,526 psi | 68% | 2759 fps | 98% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,266 psi | 41% | 2461 fps | 97.6% |
| Winchester Supreme 780 | <<locked>> | 86% | 38,928 psi | 61% | 2635 fps | 95% |
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 88 powders for 7 mm WSM loaded with the .284 | 150gr | Norma FMJ SemiP. Winchester StaBALL HD delivers the highest muzzle velocity at 3,100 fps; across all powders the maximum-charge window runs from 1,837 fps to 3,100 fps. ADI AR 2217 gives the best case fill at 100 %, and 88 of the 88 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-23 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. Accurate MAGPRO, Alliant Reloder-26, Norma MRP rank at the top here: for 7 mm WSM with the .284 | 150gr | Norma FMJ SemiP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Baschieri & Pellagri 109, IMR 8133 Enduron, Norma 217 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.