Load Specifications
Load data in caliber 7 mm WSM with .284 | 173gr | RWS H-Mantel bullet and 78 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% | 57,406 psi | 90% | 2766 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 55,419 psi | 87% | 2746 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 55,970 psi | 88% | 2864 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 82% | 56,347 psi | 88% | 2700 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 56,072 psi | 88% | 2805 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 96% | 57,348 psi | 90% | 2864 fps | 99.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 47,921 psi | 75% | 2707 fps | 98.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,699 psi | 67% | 2671 fps | 99.4% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 56,188 psi | 88% | 2799 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 57,711 psi | 90% | 2723 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 56,304 psi | 88% | 2799 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 57,217 psi | 90% | 2812 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 55,492 psi | 87% | 2792 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 96% | 57,246 psi | 90% | 2858 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 54,839 psi | 86% | 2779 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 53,896 psi | 84% | 2835 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 54,853 psi | 86% | 2861 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 55,651 psi | 87% | 2772 fps | 96.5% |
| Bofors RP15 | <<locked>> | 98% | 56,086 psi | 88% | 2841 fps | 99.7% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,009 psi | 78% | 2779 fps | 98.7% |
| Bofors RP5 | <<locked>> | 96% | 57,246 psi | 90% | 2858 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 54,273 psi | 85% | 2694 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 52,895 psi | 83% | 2792 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 86% | 56,942 psi | 89% | 2799 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 55,985 psi | 88% | 2756 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 94% | 57,421 psi | 90% | 2805 fps | 98.7% |
| Hodgdon H4831 SC | <<locked>> | 94% | 56,275 psi | 88% | 2789 fps | 98.6% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 56,565 psi | 89% | 2723 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 52,765 psi | 83% | 2900 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 86% | 57,479 psi | 90% | 2841 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,173 psi | 58% | 1703 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 55,869 psi | 88% | 2736 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 84% | 55,825 psi | 87% | 2720 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 55,651 psi | 87% | 2740 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 54,969 psi | 86% | 2733 fps | 98.5% |
| IMR 7828 SSC | <<locked>> | 96% | 55,129 psi | 86% | 2841 fps | 99% |
| Lovex S065 | <<locked>> | 86% | 56,275 psi | 88% | 2717 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 54,375 psi | 85% | 2710 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 54,853 psi | 86% | 2733 fps | 100% |
| Norma 204 | <<locked>> | 88% | 56,855 psi | 89% | 2792 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 38,363 psi | 60% | 2602 fps | 97.9% |
| Norma MRP | <<locked>> | 94% | 57,174 psi | 90% | 2881 fps | 100% |
| Norma URP | <<locked>> | 88% | 57,217 psi | 90% | 2779 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 55,767 psi | 87% | 2861 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 88% | 56,246 psi | 88% | 2792 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 53,867 psi | 84% | 2799 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,927 psi | 59% | 1742 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 57,043 psi | 89% | 2799 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 55,332 psi | 87% | 2772 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 57,232 psi | 90% | 2851 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 53,417 psi | 84% | 2900 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 48,109 psi | 75% | 2782 fps | 97.1% |
| Rottweil R 903 | <<locked>> | 82% | 55,521 psi | 87% | 2694 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 57,130 psi | 90% | 2772 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 92% | 54,882 psi | 86% | 2779 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 84% | 54,273 psi | 85% | 2694 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 86% | 56,275 psi | 88% | 2717 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 54,375 psi | 85% | 2710 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 57,043 psi | 89% | 2749 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,535 psi | 87% | 2569 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 55,622 psi | 87% | 2674 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 54,433 psi | 85% | 2776 fps | 99.6% |
| Somchem S355 | <<locked>> | 82% | 55,419 psi | 87% | 2690 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 55,027 psi | 86% | 2713 fps | 98.3% |
| Somchem S365 | <<locked>> | 88% | 54,186 psi | 85% | 2733 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 55,608 psi | 87% | 2756 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 84% | 56,333 psi | 88% | 2657 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 55,695 psi | 87% | 2723 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 54,853 psi | 86% | 2733 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 86% | 54,795 psi | 86% | 2730 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 57,058 psi | 89% | 2802 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 56,985 psi | 89% | 2877 fps | 98.9% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 56,449 psi | 88% | 2854 fps | 99% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 49,559 psi | 78% | 2792 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,056 psi | 86% | 2684 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 57,188 psi | 90% | 2802 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 55,767 psi | 87% | 2904 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 55,288 psi | 87% | 2749 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% | 33,649 psi | 53% | 2352 fps | 97.6% |
| Accurate 4350 | <<locked>> | 80% | 45,121 psi | 71% | 2592 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 42,250 psi | 66% | 2621 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 53,214 psi | 83% | 2657 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 37,652 psi | 59% | 2470 fps | 96.2% |
| ADI AR 2213 | <<locked>> | 86% | 41,118 psi | 64% | 2575 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 94% | 39,320 psi | 62% | 2533 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 90% | 31,067 psi | 49% | 2382 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 38,014 psi | 60% | 2470 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 54,505 psi | 85% | 2680 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,178 psi | 68% | 2595 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 49,893 psi | 78% | 2707 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,710 psi | 59% | 2467 fps | 96.2% |
| Alliant Reloder-22 | <<locked>> | 82% | 35,839 psi | 56% | 2467 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,358 psi | 51% | 2382 fps | 99.7% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,166 psi | 44% | 2290 fps | 95.9% |
| Alliant Reloder-26 | 56.6 gr | 80% | 35,215 psi | 55% | 2513 fps | 99.2% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 52,344 psi | 82% | 2717 fps | 95.8% |
| Bofors RP15 | <<locked>> | 84% | 35,578 psi | 56% | 2461 fps | 95.5% |
| Bofors RP30 | <<locked>> | 92% | 38,101 psi | 60% | 2549 fps | 95.7% |
| Bofors RP5 | <<locked>> | 82% | 35,839 psi | 56% | 2467 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 47,877 psi | 75% | 2592 fps | 99.3% |
| Hodgdon H1000 | <<locked>> | 90% | 37,811 psi | 59% | 2503 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 46,818 psi | 73% | 2638 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 80% | 49,400 psi | 77% | 2651 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 84% | 41,002 psi | 64% | 2523 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 86% | 43,120 psi | 68% | 2566 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,857 psi | 64% | 2487 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 33,446 psi | 52% | 2480 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 46,093 psi | 72% | 2661 fps | 99.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,731 psi | 43% | 1519 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,366 psi | 68% | 2530 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,327 psi | 77% | 2618 fps | 99.6% |
| IMR 4831 | <<locked>> | 80% | 43,091 psi | 68% | 2543 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 40,118 psi | 63% | 2467 fps | 95.1% |
| IMR 7828 SSC | 56.8 gr | 86% | 39,465 psi | 62% | 2552 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 46,963 psi | 74% | 2572 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 45,107 psi | 71% | 2559 fps | 99.3% |
| Lovex S071 | <<locked>> | 80% | 28,979 psi | 45% | 2234 fps | 95.7% |
| Norma 204 | <<locked>> | 80% | 43,279 psi | 68% | 2562 fps | 97.6% |
| Norma 217 | <<locked>> | 94% | 31,560 psi | 49% | 2428 fps | 95.1% |
| Norma MRP | <<locked>> | 80% | 34,998 psi | 55% | 2477 fps | 96.9% |
| Norma URP | <<locked>> | 80% | 44,237 psi | 69% | 2579 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 39,044 psi | 61% | 2556 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 43,062 psi | 67% | 2575 fps | 99.4% |
| Ramshot Magnum | <<locked>> | 84% | 32,416 psi | 51% | 2382 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,471 psi | 45% | 1558 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 53,040 psi | 83% | 2746 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,976 psi | 70% | 2612 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,105 psi | 68% | 2625 fps | 99.9% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 32,532 psi | 51% | 2457 fps | 96.1% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 41,582 psi | 65% | 2657 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 80% | 52,054 psi | 82% | 2644 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 39,160 psi | 61% | 2454 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 80% | 36,970 psi | 58% | 2451 fps | 96.2% |
| Rottweil R 907 | <<locked>> | 80% | 47,877 psi | 75% | 2592 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,963 psi | 74% | 2572 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 45,107 psi | 71% | 2559 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 53,359 psi | 84% | 2700 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,127 psi | 82% | 2523 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,788 psi | 72% | 2520 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 36,666 psi | 57% | 2448 fps | 96.1% |
| Somchem S355 | <<locked>> | 80% | 52,069 psi | 82% | 2641 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 42,322 psi | 66% | 2497 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 41,220 psi | 65% | 2536 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,623 psi | 59% | 2441 fps | 97.2% |
| Vihtavuori N150 | <<locked>> | 80% | 49,647 psi | 78% | 2569 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,745 psi | 72% | 2572 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 32,518 psi | 51% | 2320 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 45,223 psi | 71% | 2579 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 36,318 psi | 57% | 2451 fps | 99.7% |
| Vihtavuori N560 | <<locked>> | 84% | 40,364 psi | 63% | 2579 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 90% | 40,422 psi | 63% | 2572 fps | 95.6% |
| Vihtavuori N568 | <<locked>> | 98% | 46,151 psi | 72% | 2733 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,672 psi | 70% | 2536 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,818 psi | 73% | 2638 fps | 99.5% |
| Winchester StaBALL HD | 54.3 gr | 80% | 28,616 psi | 45% | 2395 fps | 99.8% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,214 psi | 54% | 2365 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 78 powders for 7 mm WSM loaded with the .284 | 173gr | RWS H-Mantel. Winchester StaBALL HD delivers the highest muzzle velocity at 2,904 fps; across all powders the maximum-charge window runs from 1,703 fps to 2,904 fps. ADI AR 2217 gives the best case fill at 100 %, and 78 of the 78 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 173.0 gr projectile in 0.284" calls for a 1:11.0 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 | 173gr | RWS H-Mantel 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.