Load Specifications
Load data in caliber 7 mm WSM with .284 | 150gr | Prvi Partizan HP BT bullet and 86 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 and Alliant Reloder-26.
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 2700 | <<locked>> | 82% | 56,362 psi | 88% | 2877 fps | 99.3% |
| Accurate 3100 | <<locked>> | 98% | 55,680 psi | 87% | 2933 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 56,188 psi | 88% | 2858 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 57,551 psi | 90% | 2976 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 54,056 psi | 85% | 3018 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 84% | 55,782 psi | 87% | 2890 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,462 psi | 85% | 2966 fps | 98.6% |
| ADI AR 2213 | <<locked>> | 98% | 55,927 psi | 88% | 3025 fps | 97.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,624 psi | 61% | 2736 fps | 96.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 56,782 psi | 89% | 2910 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 56,956 psi | 89% | 2933 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,447 psi | 85% | 2976 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 55,651 psi | 87% | 2995 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 57,551 psi | 90% | 3012 fps | 99% |
| Alliant Reloder-22 | <<locked>> | 98% | 55,376 psi | 87% | 3022 fps | 98.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 55,956 psi | 88% | 2995 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,443 psi | 76% | 2936 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 56,695 psi | 89% | 3091 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,259 psi | 85% | 3002 fps | 98.7% |
| Bofors RP3 | <<locked>> | 82% | 54,259 psi | 85% | 2877 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,411 psi | 70% | 2854 fps | 96% |
| Bofors RP5 | <<locked>> | 98% | 55,376 psi | 87% | 3022 fps | 98.9% |
| Bofors RP7 | <<locked>> | 88% | 56,826 psi | 89% | 2920 fps | 99.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,051 psi | 75% | 2877 fps | 97.1% |
| Hodgdon H380 | <<locked>> | 82% | 54,433 psi | 85% | 2894 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 55,680 psi | 87% | 2972 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 86% | 55,027 psi | 86% | 2930 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 96% | 55,883 psi | 88% | 2963 fps | 97.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 54,810 psi | 86% | 2943 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 54,810 psi | 86% | 2900 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,558 psi | 75% | 2982 fps | 98.4% |
| Hodgdon Superformance | <<locked>> | 88% | 56,072 psi | 88% | 3012 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,622 psi | 57% | 1824 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,230 psi | 87% | 2871 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 57,450 psi | 90% | 2907 fps | 99.7% |
| IMR 4350 | <<locked>> | 90% | 54,810 psi | 86% | 2907 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,027 psi | 86% | 2894 fps | 99.5% |
| IMR 4831 | <<locked>> | 92% | 57,667 psi | 90% | 2966 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 57,421 psi | 90% | 2953 fps | 97.7% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 57,145 psi | 90% | 3058 fps | 98.2% |
| Lovex S062 | <<locked>> | 82% | 55,564 psi | 87% | 2864 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 55,463 psi | 87% | 2894 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 56,753 psi | 89% | 2936 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,617 psi | 78% | 2838 fps | 99.5% |
| Norma 203B | <<locked>> | 82% | 56,275 psi | 88% | 2920 fps | 100% |
| Norma 204 | <<locked>> | 90% | 55,622 psi | 87% | 2959 fps | 98.6% |
| Norma MRP | <<locked>> | 96% | 54,926 psi | 86% | 3041 fps | 99.6% |
| Norma URP | <<locked>> | 90% | 55,840 psi | 88% | 2956 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 57,246 psi | 90% | 2949 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,027 psi | 85% | 3015 fps | 98% |
| Ramshot Hunter | <<locked>> | 90% | 54,795 psi | 86% | 2963 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 51,866 psi | 81% | 2946 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,478 psi | 59% | 1870 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,186 psi | 85% | 2881 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 55,071 psi | 86% | 2986 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 57,435 psi | 90% | 2999 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 55,593 psi | 87% | 3025 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 47,659 psi | 75% | 2976 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 82% | 57,319 psi | 90% | 2874 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 54,346 psi | 85% | 2874 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 56,101 psi | 88% | 2936 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 96% | 56,927 psi | 89% | 2999 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 88% | 56,826 psi | 89% | 2920 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 88% | 55,463 psi | 87% | 2894 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 55,564 psi | 87% | 2864 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 56,753 psi | 89% | 2936 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 55,941 psi | 88% | 2936 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,998 psi | 86% | 2756 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,897 psi | 86% | 2844 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 56,463 psi | 88% | 2995 fps | 99% |
| Somchem S355 | <<locked>> | 86% | 57,696 psi | 90% | 2920 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,273 psi | 85% | 2874 fps | 96.9% |
| Somchem S365 | <<locked>> | 92% | 55,767 psi | 87% | 2959 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 57,551 psi | 90% | 2972 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 86% | 55,608 psi | 87% | 2844 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,186 psi | 85% | 2897 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 56,956 psi | 89% | 2949 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 82% | 56,260 psi | 88% | 2841 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 57,058 psi | 89% | 2956 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 55,071 psi | 86% | 2976 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 55,027 psi | 86% | 3035 fps | 97.4% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 50,647 psi | 79% | 2943 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 57,667 psi | 90% | 2913 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 55,680 psi | 87% | 2972 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 52,373 psi | 82% | 3074 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 53,925 psi | 85% | 2910 fps | 98.5% |
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% | 52,779 psi | 83% | 2818 fps | 98.9% |
| Accurate 3100 | <<locked>> | 82% | 32,285 psi | 51% | 2480 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 52,823 psi | 83% | 2808 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 40,944 psi | 64% | 2694 fps | 99.3% |
| Accurate MAGPRO | <<locked>> | 94% | 50,372 psi | 79% | 2953 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 49,327 psi | 77% | 2785 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 41,945 psi | 66% | 2730 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 92% | 45,672 psi | 72% | 2838 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 98% | 36,143 psi | 57% | 2671 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,183 psi | 79% | 2812 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 53,563 psi | 84% | 2884 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,436 psi | 62% | 2700 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,063 psi | 71% | 2825 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,175 psi | 61% | 2667 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 88% | 39,566 psi | 62% | 2720 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,109 psi | 46% | 2454 fps | 97.8% |
| Alliant Reloder-25 | <<locked>> | 86% | 30,951 psi | 49% | 2520 fps | 95.3% |
| Alliant Reloder-26 | 57.8 gr | 80% | 31,299 psi | 49% | 2572 fps | 96.4% |
| Bofors RP15 | <<locked>> | 92% | 41,785 psi | 65% | 2769 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 50,676 psi | 79% | 2825 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 41,626 psi | 65% | 2795 fps | 95.1% |
| Bofors RP5 | <<locked>> | 88% | 39,566 psi | 62% | 2720 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 44,411 psi | 70% | 2703 fps | 97.6% |
| Hodgdon H1000 | <<locked>> | 96% | 41,800 psi | 66% | 2746 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 50,894 psi | 80% | 2838 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 42,714 psi | 67% | 2740 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 80% | 45,310 psi | 71% | 2753 fps | 97.1% |
| Hodgdon H4831 | <<locked>> | 92% | 48,863 psi | 77% | 2841 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 92% | 47,877 psi | 75% | 2825 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,999 psi | 58% | 2589 fps | 99.6% |
| Hodgdon Retumbo | <<locked>> | 94% | 39,044 psi | 61% | 2782 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 41,611 psi | 65% | 2753 fps | 97.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,427 psi | 43% | 1631 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,909 psi | 81% | 2822 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 54,099 psi | 85% | 2854 fps | 99.5% |
| IMR 4350 | <<locked>> | 80% | 39,987 psi | 63% | 2628 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,658 psi | 72% | 2730 fps | 98.2% |
| IMR 4831 | <<locked>> | 80% | 39,073 psi | 61% | 2641 fps | 99% |
| IMR 4955 Enduron | <<locked>> | 90% | 47,601 psi | 75% | 2782 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 94% | 46,586 psi | 73% | 2867 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 52,257 psi | 82% | 2815 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,265 psi | 68% | 2680 fps | 98.8% |
| Lovex S070 | <<locked>> | 80% | 41,611 psi | 65% | 2664 fps | 97.6% |
| Lovex S071 | <<locked>> | 86% | 31,633 psi | 50% | 2464 fps | 95.1% |
| Norma 203B | <<locked>> | 80% | 52,924 psi | 83% | 2867 fps | 100% |
| Norma 204 | <<locked>> | 82% | 42,322 psi | 66% | 2717 fps | 95.8% |
| Norma MRP | 58.9 gr | 84% | 36,100 psi | 57% | 2667 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 40,393 psi | 63% | 2684 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 80% | 53,606 psi | 84% | 2894 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 43,511 psi | 68% | 2818 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 39,146 psi | 61% | 2671 fps | 97.6% |
| Ramshot Magnum | <<locked>> | 92% | 38,812 psi | 61% | 2694 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,079 psi | 44% | 1673 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,749 psi | 80% | 2822 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,805 psi | 75% | 2874 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,567 psi | 64% | 2707 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,204 psi | 61% | 2720 fps | 98.7% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 35,897 psi | 56% | 2697 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 53,911 psi | 84% | 2825 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 47,892 psi | 75% | 2772 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 43,511 psi | 68% | 2713 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 86% | 40,988 psi | 64% | 2710 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 44,411 psi | 70% | 2703 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,265 psi | 68% | 2680 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 52,257 psi | 82% | 2815 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,611 psi | 65% | 2664 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,965 psi | 77% | 2825 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,472 psi | 76% | 2661 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,409 psi | 66% | 2625 fps | 97.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 40,625 psi | 64% | 2703 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 47,921 psi | 75% | 2769 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 47,427 psi | 74% | 2756 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 37,014 psi | 58% | 2641 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 36,419 psi | 57% | 2575 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 80% | 45,861 psi | 72% | 2697 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,843 psi | 66% | 2680 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 88% | 38,276 psi | 60% | 2612 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 52,707 psi | 83% | 2792 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,133 psi | 64% | 2680 fps | 99.1% |
| Vihtavuori N555 | <<locked>> | 80% | 32,401 psi | 51% | 2530 fps | 97.8% |
| Vihtavuori N560 | 64.5 gr | 92% | 47,950 psi | 75% | 2907 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 96% | 44,295 psi | 69% | 2822 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,886 psi | 64% | 2648 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 42,714 psi | 67% | 2740 fps | 97.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,730 psi | 40% | 2434 fps | 97% |
| Winchester Supreme 780 | <<locked>> | 88% | 40,872 psi | 64% | 2674 fps | 95.6% |
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 91 powders for 7 mm WSM loaded with the .284 | 150gr | Prvi Partizan HP BT. Alliant Reloder-26 delivers the highest muzzle velocity at 3,091 fps; across all powders the maximum-charge window runs from 1,824 fps to 3,091 fps. ADI AR 2217 gives the best case fill at 100 %, and 91 of the 91 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:11.5 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. Norma MRP, Vihtavuori N560, Alliant Reloder-26 rank at the top here: for 7 mm WSM with the .284 | 150gr | Prvi Partizan HP BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Baschieri & Pellagri 109, Norma 217, ReloadSwiss RS 80 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.