Load Specifications
Load data in caliber 7 mm WSM with .284 | 175gr | Barnes Solid RN bullet and 77 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Winchester StaBALL HD and IMR 7828 SSC.
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% | 57,421 psi | 90% | 2749 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 55,201 psi | 87% | 2726 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 55,753 psi | 87% | 2844 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 82% | 56,333 psi | 88% | 2684 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 55,680 psi | 87% | 2782 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 96% | 57,058 psi | 89% | 2841 fps | 99.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 47,718 psi | 75% | 2684 fps | 98% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,511 psi | 67% | 2651 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 57,740 psi | 90% | 2703 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 56,086 psi | 88% | 2779 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 57,058 psi | 89% | 2789 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 55,434 psi | 87% | 2772 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 96% | 56,942 psi | 89% | 2835 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 54,505 psi | 85% | 2756 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 53,635 psi | 84% | 2812 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 54,578 psi | 86% | 2838 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 55,288 psi | 87% | 2749 fps | 96.5% |
| Bofors RP15 | <<locked>> | 98% | 56,101 psi | 88% | 2822 fps | 99.7% |
| Bofors RP30ᴾ | <<locked>> | 100% | 49,545 psi | 78% | 2753 fps | 98.7% |
| Bofors RP5 | <<locked>> | 96% | 56,942 psi | 89% | 2835 fps | 99.8% |
| Bofors RP7 | <<locked>> | 86% | 57,537 psi | 90% | 2723 fps | 100% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 52,750 psi | 83% | 2772 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 86% | 56,753 psi | 89% | 2779 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 56,057 psi | 88% | 2740 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 94% | 57,145 psi | 90% | 2782 fps | 98.7% |
| Hodgdon H4831 SC | <<locked>> | 94% | 55,970 psi | 88% | 2766 fps | 98.6% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 56,130 psi | 88% | 2700 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 52,576 psi | 82% | 2877 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 86% | 57,174 psi | 90% | 2818 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,115 psi | 58% | 1686 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 55,477 psi | 87% | 2713 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 84% | 55,564 psi | 87% | 2697 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 55,492 psi | 87% | 2720 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 54,607 psi | 86% | 2710 fps | 98.5% |
| IMR 7828 SSC | <<locked>> | 96% | 54,853 psi | 86% | 2818 fps | 99% |
| Lovex S065 | <<locked>> | 86% | 56,043 psi | 88% | 2694 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 57,667 psi | 90% | 2743 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 54,534 psi | 85% | 2710 fps | 100% |
| Norma 204 | <<locked>> | 88% | 56,434 psi | 88% | 2769 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 38,218 psi | 60% | 2582 fps | 98% |
| Norma MRP | <<locked>> | 94% | 56,898 psi | 89% | 2858 fps | 100% |
| Norma URP | <<locked>> | 88% | 57,043 psi | 89% | 2759 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 55,506 psi | 87% | 2838 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 88% | 55,898 psi | 88% | 2769 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 53,722 psi | 84% | 2776 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,869 psi | 59% | 1726 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 56,811 psi | 89% | 2779 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 54,926 psi | 86% | 2749 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 57,145 psi | 90% | 2831 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 53,084 psi | 83% | 2877 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 47,993 psi | 75% | 2766 fps | 97.1% |
| Rottweil R 903 | <<locked>> | 82% | 55,506 psi | 87% | 2674 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 57,043 psi | 89% | 2749 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 92% | 54,766 psi | 86% | 2759 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 86% | 57,537 psi | 90% | 2723 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 86% | 56,043 psi | 88% | 2694 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 57,667 psi | 90% | 2743 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 56,869 psi | 89% | 2730 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,463 psi | 87% | 2549 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 55,477 psi | 87% | 2651 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 54,331 psi | 85% | 2756 fps | 99.6% |
| Somchem S355 | <<locked>> | 82% | 55,114 psi | 86% | 2667 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 55,042 psi | 86% | 2694 fps | 98.4% |
| Somchem S365 | <<locked>> | 90% | 57,421 psi | 90% | 2759 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 55,245 psi | 87% | 2733 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 84% | 56,376 psi | 88% | 2641 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 55,521 psi | 87% | 2703 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 54,853 psi | 86% | 2717 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 86% | 54,592 psi | 86% | 2707 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 57,000 psi | 89% | 2782 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 56,710 psi | 89% | 2854 fps | 98.9% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 56,275 psi | 88% | 2831 fps | 99% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 49,139 psi | 77% | 2769 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 54,708 psi | 86% | 2664 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 57,029 psi | 89% | 2782 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 55,506 psi | 87% | 2884 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 55,013 psi | 86% | 2726 fps | 99.5% |
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 3100 | <<locked>> | 80% | 33,605 psi | 53% | 2336 fps | 97.6% |
| Accurate 4350 | <<locked>> | 80% | 45,078 psi | 71% | 2572 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 42,163 psi | 66% | 2605 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 52,895 psi | 83% | 2635 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 37,608 psi | 59% | 2454 fps | 96.2% |
| ADI AR 2213 | <<locked>> | 84% | 38,363 psi | 60% | 2497 fps | 95% |
| ADI AR 2217 | <<locked>> | 94% | 39,291 psi | 62% | 2516 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 90% | 30,966 psi | 49% | 2369 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 54,201 psi | 85% | 2657 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,105 psi | 68% | 2575 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 49,690 psi | 78% | 2687 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,666 psi | 59% | 2451 fps | 96.3% |
| Alliant Reloder-22 | <<locked>> | 82% | 35,679 psi | 56% | 2448 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,111 psi | 50% | 2359 fps | 99.7% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,123 psi | 44% | 2277 fps | 96% |
| Alliant Reloder-26 | 55.9 gr | 80% | 35,041 psi | 55% | 2493 fps | 99.2% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 52,185 psi | 82% | 2697 fps | 95.8% |
| Bofors RP15 | <<locked>> | 84% | 35,592 psi | 56% | 2444 fps | 95.5% |
| Bofors RP30 | <<locked>> | 92% | 38,000 psi | 60% | 2533 fps | 95.8% |
| Bofors RP5 | <<locked>> | 82% | 35,679 psi | 56% | 2448 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 47,834 psi | 75% | 2572 fps | 99.3% |
| Hodgdon H1000 | <<locked>> | 90% | 37,536 psi | 59% | 2480 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 46,615 psi | 73% | 2618 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 80% | 49,168 psi | 77% | 2628 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 84% | 40,828 psi | 64% | 2503 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 84% | 40,234 psi | 63% | 2490 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,799 psi | 64% | 2467 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 33,330 psi | 52% | 2461 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 45,948 psi | 72% | 2641 fps | 99.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,760 psi | 44% | 1506 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,352 psi | 68% | 2510 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,066 psi | 77% | 2595 fps | 99.6% |
| IMR 4831 | <<locked>> | 80% | 42,815 psi | 67% | 2520 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 40,103 psi | 63% | 2451 fps | 95.2% |
| IMR 7828 SSC | 56.1 gr | 86% | 39,320 psi | 62% | 2533 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 46,702 psi | 73% | 2549 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 45,092 psi | 71% | 2543 fps | 99.4% |
| Lovex S071 | <<locked>> | 80% | 28,877 psi | 45% | 2218 fps | 95.8% |
| Norma 204 | <<locked>> | 80% | 43,265 psi | 68% | 2546 fps | 97.7% |
| Norma 217 | <<locked>> | 94% | 31,328 psi | 49% | 2408 fps | 95.1% |
| Norma MRP | <<locked>> | 80% | 34,824 psi | 55% | 2454 fps | 96.9% |
| Norma URP | <<locked>> | 80% | 44,208 psi | 69% | 2559 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 38,928 psi | 61% | 2539 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 43,062 psi | 67% | 2559 fps | 99.5% |
| Ramshot Magnum | <<locked>> | 84% | 32,314 psi | 51% | 2365 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,311 psi | 44% | 1539 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 52,750 psi | 83% | 2726 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,730 psi | 70% | 2589 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,902 psi | 67% | 2605 fps | 99.9% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 32,314 psi | 51% | 2434 fps | 96% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 41,249 psi | 65% | 2635 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 80% | 52,011 psi | 82% | 2625 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 38,914 psi | 61% | 2434 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 80% | 36,956 psi | 58% | 2438 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 80% | 47,834 psi | 75% | 2572 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,702 psi | 73% | 2549 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 45,092 psi | 71% | 2543 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 53,403 psi | 84% | 2680 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,011 psi | 82% | 2507 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,818 psi | 72% | 2503 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 36,637 psi | 57% | 2431 fps | 96.2% |
| Somchem S355 | <<locked>> | 80% | 51,750 psi | 81% | 2618 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 42,206 psi | 66% | 2477 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 41,147 psi | 64% | 2516 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,420 psi | 59% | 2418 fps | 97.2% |
| Vihtavuori N150 | <<locked>> | 80% | 49,588 psi | 78% | 2549 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,701 psi | 72% | 2552 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 32,474 psi | 51% | 2303 fps | 95.1% |
| Vihtavuori N550 | <<locked>> | 80% | 44,991 psi | 71% | 2559 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 36,056 psi | 56% | 2431 fps | 99.7% |
| Vihtavuori N560 | <<locked>> | 84% | 40,248 psi | 63% | 2562 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 90% | 40,147 psi | 63% | 2549 fps | 95.6% |
| Vihtavuori N568 | <<locked>> | 98% | 45,992 psi | 72% | 2710 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,512 psi | 70% | 2516 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,818 psi | 73% | 2621 fps | 99.5% |
| Winchester StaBALL HD | 53.7 gr | 80% | 28,601 psi | 45% | 2382 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,040 psi | 53% | 2346 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 77 powders for 7 mm WSM loaded with the .284 | 175gr | Barnes Solid RN. Winchester StaBALL HD delivers the highest muzzle velocity at 2,884 fps; across all powders the maximum-charge window runs from 1,686 fps to 2,884 fps. ADI AR 2217 gives the best case fill at 100 %, and 77 of the 77 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.284" calls for a 1:10.5 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. Alliant Reloder-26, Winchester StaBALL HD, IMR 7828 SSC rank at the top here: for 7 mm WSM with the .284 | 175gr | Barnes Solid RN 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.