Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 173gr | RWS H-Mantel bullet and 73 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, Winchester StaBALL HD and ReloadSwiss RS 76.
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>> | 92% | 55,448 psi | 87% | 2756 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 56,434 psi | 88% | 2779 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 56,855 psi | 89% | 2907 fps | 99.5% |
| Accurate MAGPRO | <<locked>> | 90% | 53,998 psi | 85% | 2851 fps | 98.4% |
| ADI AR 2209 | <<locked>> | 90% | 57,261 psi | 90% | 2844 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 92% | 55,071 psi | 86% | 2851 fps | 99.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 52,924 psi | 83% | 2815 fps | 99.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 47,485 psi | 74% | 2779 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 57,334 psi | 90% | 2838 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 57,348 psi | 90% | 2831 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 56,652 psi | 89% | 2831 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 55,332 psi | 87% | 2848 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 94% | 56,608 psi | 89% | 2812 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 56,173 psi | 88% | 2877 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 57,348 psi | 90% | 2904 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 56,391 psi | 88% | 2815 fps | 97.3% |
| Bofors RP15 | <<locked>> | 94% | 54,534 psi | 85% | 2831 fps | 99.7% |
| Bofors RP30ᴾ | <<locked>> | 100% | 55,825 psi | 87% | 2884 fps | 99.6% |
| Bofors RP5 | <<locked>> | 92% | 55,332 psi | 87% | 2848 fps | 99.8% |
| Bofors RP7 | <<locked>> | 82% | 54,752 psi | 86% | 2726 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 98% | 54,389 psi | 85% | 2838 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 82% | 54,244 psi | 85% | 2779 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 56,666 psi | 89% | 2789 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 90% | 54,665 psi | 86% | 2785 fps | 98.7% |
| Hodgdon H4831 SC | <<locked>> | 92% | 57,508 psi | 90% | 2828 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 57,537 psi | 90% | 2753 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 54,926 psi | 86% | 2953 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 54,636 psi | 86% | 2815 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,434 psi | 59% | 1739 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 56,478 psi | 89% | 2766 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 56,144 psi | 88% | 2746 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 56,855 psi | 89% | 2772 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 55,753 psi | 87% | 2772 fps | 99% |
| IMR 7828 SSC | <<locked>> | 94% | 56,884 psi | 89% | 2887 fps | 99.5% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 42,931 psi | 67% | 2684 fps | 97.5% |
| Lovex S065 | <<locked>> | 84% | 56,913 psi | 89% | 2746 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 55,274 psi | 87% | 2746 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 56,521 psi | 89% | 2772 fps | 100% |
| Norma 204 | <<locked>> | 86% | 57,725 psi | 90% | 2825 fps | 99.8% |
| Norma 217ᴾ | <<locked>> | 100% | 43,294 psi | 68% | 2713 fps | 99.3% |
| Norma MRP | <<locked>> | 90% | 55,071 psi | 86% | 2864 fps | 100% |
| Norma URP | <<locked>> | 84% | 54,897 psi | 86% | 2762 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 57,740 psi | 90% | 2910 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 86% | 57,334 psi | 90% | 2822 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 55,985 psi | 88% | 2841 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,174 psi | 60% | 1778 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 56,478 psi | 89% | 2802 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 54,708 psi | 86% | 2828 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 55,637 psi | 87% | 2949 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 54,824 psi | 86% | 2907 fps | 98.7% |
| Rottweil R 904 | <<locked>> | 88% | 54,636 psi | 86% | 2759 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 90% | 56,217 psi | 88% | 2818 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 82% | 54,752 psi | 86% | 2726 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 84% | 56,913 psi | 89% | 2746 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 55,274 psi | 87% | 2746 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 56,130 psi | 88% | 2703 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 55,796 psi | 87% | 2815 fps | 99.8% |
| Somchem S361 | <<locked>> | 88% | 55,956 psi | 88% | 2753 fps | 98.8% |
| Somchem S365 | <<locked>> | 86% | 55,506 psi | 87% | 2766 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 56,666 psi | 89% | 2792 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 56,855 psi | 89% | 2684 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 56,420 psi | 88% | 2753 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 56,391 psi | 88% | 2776 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 84% | 55,550 psi | 87% | 2756 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 55,361 psi | 87% | 2792 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 54,810 psi | 86% | 2861 fps | 98.9% |
| Vihtavuori N565 | <<locked>> | 96% | 54,998 psi | 86% | 2848 fps | 99.1% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 55,651 psi | 87% | 2910 fps | 98.4% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 52,533 psi | 82% | 2897 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 55,825 psi | 87% | 2710 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 54,491 psi | 85% | 2782 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 55,129 psi | 86% | 2897 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 56,710 psi | 89% | 2792 fps | 99.8% |
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 3100 | <<locked>> | 80% | 37,173 psi | 58% | 2441 fps | 98.8% |
| Accurate 4350 | <<locked>> | 80% | 49,458 psi | 78% | 2674 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 40,161 psi | 63% | 2598 fps | 96.4% |
| Accurate MAGPRO | <<locked>> | 82% | 40,770 psi | 64% | 2602 fps | 95.1% |
| ADI AR 2209 | <<locked>> | 80% | 40,944 psi | 64% | 2559 fps | 97.6% |
| ADI AR 2213 | <<locked>> | 82% | 39,189 psi | 61% | 2552 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 90% | 37,898 psi | 59% | 2523 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 86% | 30,124 psi | 47% | 2372 fps | 95.4% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 41,568 psi | 65% | 2562 fps | 97.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 47,326 psi | 74% | 2677 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 41,191 psi | 65% | 2556 fps | 97.7% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,999 psi | 58% | 2503 fps | 96.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,679 psi | 56% | 2461 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,879 psi | 48% | 2382 fps | 97.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 39,494 psi | 62% | 2608 fps | 99.9% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 49,734 psi | 78% | 2697 fps | 95.7% |
| Bofors RP15 | <<locked>> | 80% | 34,389 psi | 54% | 2441 fps | 95.4% |
| Bofors RP30 | <<locked>> | 88% | 37,217 psi | 58% | 2539 fps | 95.8% |
| Bofors RP5 | <<locked>> | 80% | 36,999 psi | 58% | 2503 fps | 96.5% |
| Bofors RP7 | <<locked>> | 80% | 51,474 psi | 81% | 2674 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 86% | 36,289 psi | 57% | 2487 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 50,966 psi | 80% | 2726 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 80% | 53,243 psi | 83% | 2736 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 80% | 39,204 psi | 61% | 2500 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 82% | 41,060 psi | 64% | 2543 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 44,585 psi | 70% | 2562 fps | 100% |
| Hodgdon Retumbo | 59.1 gr | 82% | 32,242 psi | 51% | 2461 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 50,792 psi | 80% | 2756 fps | 99.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,963 psi | 44% | 1552 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,760 psi | 73% | 2612 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,823 psi | 83% | 2697 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 46,847 psi | 73% | 2621 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,640 psi | 64% | 2500 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 82% | 37,753 psi | 59% | 2530 fps | 95.3% |
| IMR 8133 Enduron | <<locked>> | 96% | 37,608 psi | 59% | 2569 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 50,357 psi | 79% | 2648 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,675 psi | 76% | 2641 fps | 99.8% |
| Lovex S071 | <<locked>> | 80% | 31,952 psi | 50% | 2320 fps | 97.3% |
| Norma 204 | <<locked>> | 80% | 47,021 psi | 74% | 2654 fps | 98.7% |
| Norma 217 | <<locked>> | 90% | 30,908 psi | 48% | 2418 fps | 95.2% |
| Norma MRP | <<locked>> | 80% | 38,725 psi | 61% | 2569 fps | 98.4% |
| Norma URP | <<locked>> | 80% | 48,109 psi | 75% | 2657 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 37,405 psi | 59% | 2536 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 46,934 psi | 74% | 2661 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 80% | 31,067 psi | 49% | 2359 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,689 psi | 45% | 1591 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 49,342 psi | 77% | 2697 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 47,514 psi | 74% | 2717 fps | 100% |
| ReloadSwiss RS 76 | 63.3 gr | 82% | 31,314 psi | 49% | 2434 fps | 95.9% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 40,379 psi | 63% | 2641 fps | 95.2% |
| Rottweil R 904 | <<locked>> | 80% | 42,250 psi | 66% | 2536 fps | 96.9% |
| Rottweil R 905 | <<locked>> | 80% | 40,495 psi | 63% | 2543 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 80% | 51,474 psi | 81% | 2674 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 50,357 psi | 79% | 2648 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,675 psi | 76% | 2641 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,327 psi | 77% | 2598 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 40,161 psi | 63% | 2539 fps | 97.6% |
| Somchem S361 | <<locked>> | 80% | 43,004 psi | 67% | 2530 fps | 96.3% |
| Somchem S365 | <<locked>> | 80% | 45,368 psi | 71% | 2615 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 41,075 psi | 64% | 2526 fps | 98.5% |
| Vihtavuori N150 | <<locked>> | 80% | 53,417 psi | 84% | 2638 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 49,719 psi | 78% | 2654 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,723 psi | 56% | 2408 fps | 96.7% |
| Vihtavuori N550 | <<locked>> | 80% | 48,907 psi | 77% | 2657 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 39,943 psi | 63% | 2536 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 38,754 psi | 61% | 2556 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 86% | 39,189 psi | 61% | 2556 fps | 95.6% |
| Vihtavuori N568 | <<locked>> | 92% | 41,930 psi | 66% | 2661 fps | 95.1% |
| Vihtavuori N570 | <<locked>> | 98% | 48,921 psi | 77% | 2831 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 48,631 psi | 76% | 2608 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,966 psi | 80% | 2726 fps | 99.9% |
| Winchester StaBALL HD | 59.2 gr | 80% | 32,053 psi | 50% | 2493 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,608 psi | 59% | 2454 fps | 96.7% |
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 73 powders for 7 mm Weath. Mag. loaded with the .284 | 173gr | RWS H-Mantel. Hodgdon Retumbo delivers the highest muzzle velocity at 2,953 fps; across all powders the maximum-charge window runs from 1,739 fps to 2,953 fps. ADI AR 2217 gives the best case fill at 100 %, and 73 of the 73 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 59–90 %, 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, Bofors RP30 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. Hodgdon Retumbo, Winchester StaBALL HD, ReloadSwiss RS 76 rank at the top here: for 7 mm Weath. Mag. 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.