Load Specifications
Load data in caliber 7 mm WSM with .284 | 160gr | Prvi Partizan PSP BT bullet and 80 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 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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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 3100 | <<locked>> | 96% | 54,636 psi | 86% | 2831 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 56,463 psi | 88% | 2871 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 57,072 psi | 89% | 2986 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 82% | 54,607 psi | 86% | 2785 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 57,276 psi | 90% | 2927 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 96% | 54,679 psi | 86% | 2923 fps | 98.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,788 psi | 72% | 2756 fps | 96.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,669 psi | 64% | 2717 fps | 98.4% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 57,334 psi | 90% | 2920 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 55,680 psi | 87% | 2805 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 57,305 psi | 90% | 2927 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 54,752 psi | 86% | 2890 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 56,594 psi | 89% | 2913 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 96% | 54,389 psi | 85% | 2920 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 98% | 55,622 psi | 87% | 2900 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,314 psi | 80% | 2900 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 55,767 psi | 87% | 2986 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 98% | 57,116 psi | 90% | 2887 fps | 95.9% |
| Bofors RP15ᴾ | <<locked>> | 100% | 57,116 psi | 90% | 2963 fps | 99.4% |
| Bofors RP3 | <<locked>> | 82% | 56,753 psi | 89% | 2825 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,079 psi | 74% | 2828 fps | 97.5% |
| Bofors RP5 | <<locked>> | 96% | 54,389 psi | 85% | 2920 fps | 99.2% |
| Bofors RP7 | <<locked>> | 86% | 55,695 psi | 87% | 2818 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,531 psi | 79% | 2848 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 82% | 56,840 psi | 89% | 2844 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 54,723 psi | 86% | 2874 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 86% | 57,508 psi | 90% | 2884 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 94% | 54,868 psi | 86% | 2864 fps | 97.7% |
| Hodgdon H4831 SC | <<locked>> | 96% | 57,377 psi | 90% | 2907 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 57,638 psi | 90% | 2848 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 50,212 psi | 79% | 2956 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 86% | 54,752 psi | 86% | 2907 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,014 psi | 58% | 1772 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 57,479 psi | 90% | 2815 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 57,000 psi | 89% | 2858 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 86% | 57,261 psi | 90% | 2844 fps | 99.9% |
| IMR 4831 | <<locked>> | 90% | 56,666 psi | 89% | 2861 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 56,231 psi | 88% | 2854 fps | 98.1% |
| IMR 7828 SSC | <<locked>> | 98% | 56,333 psi | 88% | 2963 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 57,595 psi | 90% | 2841 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 55,840 psi | 88% | 2838 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,214 psi | 82% | 2799 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 54,273 psi | 85% | 2854 fps | 98.9% |
| Norma 217ᴾ | <<locked>> | 100% | 36,143 psi | 57% | 2638 fps | 96.2% |
| Norma MRP | <<locked>> | 94% | 54,128 psi | 85% | 2943 fps | 99.8% |
| Norma URP | <<locked>> | 88% | 55,056 psi | 86% | 2858 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 57,072 psi | 89% | 2982 fps | 99% |
| Ramshot Hunter | <<locked>> | 90% | 57,348 psi | 90% | 2913 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,940 psi | 86% | 2917 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,710 psi | 59% | 1814 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 56,478 psi | 89% | 2831 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 54,215 psi | 85% | 2877 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 56,362 psi | 88% | 2894 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 54,534 psi | 85% | 2923 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,444 psi | 79% | 2953 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 84% | 56,884 psi | 89% | 2822 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,984 psi | 86% | 2838 fps | 98.3% |
| Rottweil R 905 | <<locked>> | 94% | 55,970 psi | 88% | 2900 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 86% | 55,695 psi | 87% | 2818 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 57,595 psi | 90% | 2841 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 55,840 psi | 88% | 2838 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 54,810 psi | 86% | 2828 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 57,101 psi | 89% | 2697 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 57,029 psi | 89% | 2795 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 55,521 psi | 87% | 2897 fps | 99.3% |
| Somchem S355 | <<locked>> | 84% | 56,579 psi | 89% | 2815 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,594 psi | 89% | 2835 fps | 98% |
| Somchem S365 | <<locked>> | 90% | 54,955 psi | 86% | 2858 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 56,608 psi | 89% | 2874 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 84% | 54,288 psi | 85% | 2740 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 56,840 psi | 89% | 2848 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 56,057 psi | 88% | 2854 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 88% | 56,028 psi | 88% | 2854 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 54,418 psi | 85% | 2874 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 54,114 psi | 85% | 2936 fps | 97.9% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,577 psi | 84% | 2913 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 56,391 psi | 88% | 2808 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,723 psi | 86% | 2874 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 56,362 psi | 88% | 3031 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 56,623 psi | 89% | 2871 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% | 31,879 psi | 50% | 2395 fps | 96.1% |
| Accurate 4350 | <<locked>> | 80% | 42,946 psi | 67% | 2651 fps | 99.8% |
| Accurate MAGPRO | 64 gr | 90% | 46,108 psi | 72% | 2795 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 51,314 psi | 80% | 2733 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 38,551 psi | 60% | 2582 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 88% | 41,843 psi | 66% | 2680 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 98% | 42,946 psi | 67% | 2700 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 94% | 33,649 psi | 53% | 2536 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 38,841 psi | 61% | 2585 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,373 psi | 82% | 2759 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,249 psi | 65% | 2657 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,572 psi | 75% | 2779 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 38,479 psi | 60% | 2579 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 84% | 36,434 psi | 57% | 2572 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,705 psi | 48% | 2428 fps | 99% |
| Alliant Reloder-25 | <<locked>> | 82% | 28,660 psi | 45% | 2385 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,243 psi | 52% | 2556 fps | 98% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 53,490 psi | 84% | 2828 fps | 95.1% |
| Bofors RP15 | <<locked>> | 88% | 38,725 psi | 61% | 2625 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 53,040 psi | 83% | 2769 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 41,104 psi | 64% | 2707 fps | 95.8% |
| Bofors RP5 | <<locked>> | 84% | 36,434 psi | 57% | 2572 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 46,267 psi | 73% | 2661 fps | 98.5% |
| Hodgdon H1000 | <<locked>> | 94% | 41,118 psi | 64% | 2664 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 53,171 psi | 83% | 2792 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 44,657 psi | 70% | 2697 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 80% | 47,384 psi | 74% | 2717 fps | 98.2% |
| Hodgdon H4831 | <<locked>> | 88% | 44,802 psi | 70% | 2690 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 88% | 43,888 psi | 69% | 2671 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,957 psi | 61% | 2549 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 36,230 psi | 57% | 2641 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 44,005 psi | 69% | 2723 fps | 98.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,557 psi | 43% | 1581 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 54,012 psi | 85% | 2766 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,597 psi | 65% | 2589 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,529 psi | 74% | 2684 fps | 99% |
| IMR 4831 | <<locked>> | 80% | 41,089 psi | 64% | 2602 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 86% | 43,642 psi | 68% | 2631 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 90% | 42,975 psi | 67% | 2720 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 45,165 psi | 71% | 2638 fps | 99.5% |
| Lovex S070 | <<locked>> | 80% | 43,482 psi | 68% | 2625 fps | 98.6% |
| Lovex S071 | <<locked>> | 84% | 31,386 psi | 49% | 2385 fps | 95.9% |
| Norma 204 | <<locked>> | 80% | 41,466 psi | 65% | 2625 fps | 96.3% |
| Norma 217 | <<locked>> | 98% | 33,910 psi | 53% | 2579 fps | 95.2% |
| Norma MRP | 55.9 gr | 80% | 33,272 psi | 52% | 2520 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 42,467 psi | 67% | 2644 fps | 99.7% |
| Ramshot Grand | <<locked>> | 90% | 42,699 psi | 67% | 2726 fps | 96% |
| Ramshot Hunter | <<locked>> | 80% | 41,205 psi | 65% | 2635 fps | 98.7% |
| Ramshot Magnum | <<locked>> | 88% | 35,534 psi | 56% | 2546 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,239 psi | 44% | 1621 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,924 psi | 83% | 2776 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,488 psi | 79% | 2825 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,844 psi | 67% | 2671 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,104 psi | 64% | 2684 fps | 99.5% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 33,083 psi | 52% | 2552 fps | 95% |
| Rottweil R 903 | <<locked>> | 80% | 50,111 psi | 79% | 2723 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 42,569 psi | 67% | 2618 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 82% | 37,768 psi | 59% | 2562 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 46,267 psi | 73% | 2661 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,165 psi | 71% | 2638 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 80% | 43,482 psi | 68% | 2625 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,285 psi | 80% | 2776 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,372 psi | 79% | 2605 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,222 psi | 69% | 2585 fps | 98.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 37,420 psi | 59% | 2556 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 50,024 psi | 78% | 2717 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 43,482 psi | 68% | 2608 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 39,059 psi | 61% | 2598 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,824 psi | 56% | 2490 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 47,906 psi | 75% | 2644 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,700 psi | 68% | 2638 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 84% | 35,331 psi | 55% | 2474 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 43,163 psi | 68% | 2641 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 80% | 34,360 psi | 54% | 2503 fps | 98.9% |
| Vihtavuori N560 | 61.5 gr | 88% | 44,222 psi | 69% | 2756 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 94% | 43,772 psi | 69% | 2733 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,699 psi | 67% | 2602 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,860 psi | 70% | 2703 fps | 98.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,224 psi | 43% | 2428 fps | 98.8% |
| Winchester Supreme 780 | <<locked>> | 84% | 37,449 psi | 59% | 2526 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 80 powders for 7 mm WSM loaded with the .284 | 160gr | Prvi Partizan PSP BT. Winchester StaBALL HD delivers the highest muzzle velocity at 3,031 fps; across all powders the maximum-charge window runs from 1,772 fps to 3,031 fps. ADI AR 2217 gives the best case fill at 100 %, and 80 of the 80 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 160.0 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-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. Norma MRP, Vihtavuori N560, Accurate MAGPRO rank at the top here: for 7 mm WSM with the .284 | 160gr | Prvi Partizan PSP BT 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.