Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 160gr | Speer Magnum Tip Soft Point bullet and 72 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate High Country, Hodgdon Retumbo and Winchester StaBALL HD.
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>> | 94% | 57,479 psi | 90% | 2894 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 54,940 psi | 86% | 2867 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 55,143 psi | 86% | 2986 fps | 99% |
| Accurate MAGPRO | <<locked>> | 92% | 56,101 psi | 88% | 2989 fps | 98.2% |
| ADI AR 2209 | <<locked>> | 90% | 55,738 psi | 87% | 2927 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 94% | 57,101 psi | 89% | 2986 fps | 99.1% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 51,358 psi | 80% | 2887 fps | 98.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 45,919 psi | 72% | 2848 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 55,811 psi | 87% | 2923 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 56,956 psi | 89% | 2933 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 55,158 psi | 86% | 2913 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 57,203 psi | 90% | 2982 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 55,013 psi | 86% | 2900 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 54,201 psi | 85% | 2959 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 55,245 psi | 87% | 2986 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 55,158 psi | 86% | 2890 fps | 96.3% |
| Bofors RP15 | <<locked>> | 96% | 56,362 psi | 88% | 2969 fps | 99.6% |
| Bofors RP30ᴾ | <<locked>> | 100% | 53,940 psi | 85% | 2956 fps | 99.1% |
| Bofors RP5 | <<locked>> | 94% | 57,203 psi | 90% | 2982 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 56,855 psi | 89% | 2864 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 56,565 psi | 89% | 2976 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 84% | 56,463 psi | 88% | 2920 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 55,419 psi | 87% | 2881 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 92% | 57,072 psi | 89% | 2927 fps | 98.6% |
| Hodgdon H4831 SC | <<locked>> | 92% | 55,782 psi | 87% | 2907 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 56,028 psi | 88% | 2844 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 56,884 psi | 89% | 3094 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 56,927 psi | 89% | 2959 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,144 psi | 58% | 1814 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 55,100 psi | 86% | 2854 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 82% | 54,926 psi | 86% | 2835 fps | 99.9% |
| IMR 4831 | <<locked>> | 86% | 55,100 psi | 86% | 2858 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 54,433 psi | 85% | 2854 fps | 98.3% |
| IMR 7828 SSC | <<locked>> | 94% | 55,143 psi | 86% | 2966 fps | 98.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 41,466 psi | 65% | 2746 fps | 96.3% |
| Lovex S065 | <<locked>> | 84% | 55,535 psi | 87% | 2835 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 57,377 psi | 90% | 2884 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 54,984 psi | 86% | 2854 fps | 100% |
| Norma 204 | <<locked>> | 86% | 55,999 psi | 88% | 2907 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 41,684 psi | 65% | 2772 fps | 98.5% |
| Norma MRP | <<locked>> | 92% | 57,377 psi | 90% | 3005 fps | 100% |
| Norma URP | <<locked>> | 86% | 56,942 psi | 89% | 2904 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 55,927 psi | 88% | 2989 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 55,651 psi | 87% | 2907 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 54,230 psi | 85% | 2920 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,043 psi | 60% | 1857 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 55,013 psi | 86% | 2890 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 57,087 psi | 89% | 2972 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 53,896 psi | 84% | 3028 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 52,750 psi | 83% | 2976 fps | 97.8% |
| Rottweil R 904 | <<locked>> | 90% | 56,753 psi | 89% | 2897 fps | 99% |
| Rottweil R 905 | <<locked>> | 90% | 54,723 psi | 86% | 2904 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 84% | 56,855 psi | 89% | 2864 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 84% | 55,535 psi | 87% | 2835 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 57,377 psi | 90% | 2884 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 54,679 psi | 86% | 2789 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 54,288 psi | 85% | 2897 fps | 99.5% |
| Somchem S361 | <<locked>> | 88% | 54,636 psi | 86% | 2831 fps | 98.2% |
| Somchem S365 | <<locked>> | 88% | 57,624 psi | 90% | 2904 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 55,129 psi | 86% | 2874 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 82% | 55,550 psi | 87% | 2776 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 55,056 psi | 86% | 2841 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 54,868 psi | 86% | 2858 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 86% | 57,682 psi | 90% | 2897 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 57,246 psi | 90% | 2927 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 57,116 psi | 90% | 3002 fps | 98.8% |
| Vihtavuori N565 | <<locked>> | 98% | 56,927 psi | 89% | 2982 fps | 98.9% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 53,679 psi | 84% | 2979 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 54,360 psi | 85% | 2799 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 56,681 psi | 89% | 2923 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 57,072 psi | 89% | 3038 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 55,172 psi | 86% | 2874 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% | 35,868 psi | 56% | 2503 fps | 97.9% |
| Accurate 4350 | <<locked>> | 80% | 47,906 psi | 75% | 2756 fps | 100% |
| Accurate High Country | 61.8 gr | 80% | 38,914 psi | 61% | 2664 fps | 95% |
| Accurate MAGPRO | <<locked>> | 86% | 45,455 psi | 71% | 2795 fps | 95.8% |
| ADI AR 2209 | <<locked>> | 80% | 39,885 psi | 63% | 2631 fps | 96.5% |
| ADI AR 2213 | <<locked>> | 84% | 40,814 psi | 64% | 2680 fps | 95.4% |
| ADI AR 2217 | <<locked>> | 92% | 39,407 psi | 62% | 2644 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 90% | 33,214 psi | 52% | 2543 fps | 96.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 45,905 psi | 72% | 2762 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 52,997 psi | 83% | 2877 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 39,900 psi | 63% | 2625 fps | 96.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 35,824 psi | 56% | 2569 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,418 psi | 54% | 2530 fps | 99.8% |
| Alliant Reloder-25 | <<locked>> | 80% | 29,965 psi | 47% | 2441 fps | 96.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 38,014 psi | 60% | 2674 fps | 99.5% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 51,764 psi | 81% | 2831 fps | 95.5% |
| Bofors RP15 | <<locked>> | 82% | 35,563 psi | 56% | 2559 fps | 95% |
| Bofors RP30 | <<locked>> | 90% | 38,363 psi | 60% | 2657 fps | 95.4% |
| Bofors RP5 | <<locked>> | 80% | 35,824 psi | 56% | 2569 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 50,212 psi | 79% | 2756 fps | 99.4% |
| Hodgdon H1000 | <<locked>> | 88% | 37,623 psi | 59% | 2605 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 49,530 psi | 78% | 2805 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 80% | 51,967 psi | 81% | 2822 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 84% | 43,584 psi | 68% | 2687 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 84% | 42,801 psi | 67% | 2671 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,279 psi | 68% | 2644 fps | 100% |
| Hodgdon Retumbo | 64 gr | 86% | 35,621 psi | 56% | 2641 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 49,327 psi | 77% | 2835 fps | 99.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,992 psi | 44% | 1624 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 45,658 psi | 72% | 2690 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 51,532 psi | 81% | 2779 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 45,426 psi | 71% | 2697 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 42,337 psi | 66% | 2628 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 86% | 41,916 psi | 66% | 2717 fps | 95.9% |
| IMR 8133 Enduron | <<locked>> | 98% | 38,899 psi | 61% | 2687 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 49,110 psi | 77% | 2730 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 47,558 psi | 75% | 2723 fps | 99.5% |
| Lovex S071 | <<locked>> | 80% | 30,951 psi | 49% | 2382 fps | 96.1% |
| Norma 204 | <<locked>> | 80% | 45,716 psi | 72% | 2730 fps | 97.9% |
| Norma 217 | <<locked>> | 94% | 34,040 psi | 53% | 2589 fps | 95.8% |
| Norma MRP | <<locked>> | 80% | 37,492 psi | 59% | 2635 fps | 97.3% |
| Norma URP | <<locked>> | 80% | 46,891 psi | 73% | 2743 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 38,856 psi | 61% | 2661 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 45,600 psi | 71% | 2736 fps | 99.6% |
| Ramshot Magnum | <<locked>> | 84% | 34,737 psi | 54% | 2539 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,485 psi | 45% | 1660 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 47,761 psi | 75% | 2776 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 46,050 psi | 72% | 2795 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 32,445 psi | 51% | 2549 fps | 95.4% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 45,295 psi | 71% | 2838 fps | 95.9% |
| Rottweil R 904 | <<locked>> | 80% | 41,234 psi | 65% | 2612 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 80% | 39,349 psi | 62% | 2612 fps | 96.6% |
| Rottweil R 907 | <<locked>> | 80% | 50,212 psi | 79% | 2756 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,110 psi | 77% | 2730 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 47,558 psi | 75% | 2723 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,022 psi | 75% | 2680 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,015 psi | 61% | 2608 fps | 96.5% |
| Somchem S361 | <<locked>> | 80% | 41,930 psi | 66% | 2598 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 44,005 psi | 69% | 2697 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 39,929 psi | 63% | 2598 fps | 97.6% |
| Vihtavuori N150 | <<locked>> | 80% | 52,257 psi | 82% | 2730 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 48,240 psi | 76% | 2736 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 34,519 psi | 54% | 2467 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 47,601 psi | 75% | 2736 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 38,754 psi | 61% | 2608 fps | 99.8% |
| Vihtavuori N560 | <<locked>> | 84% | 43,265 psi | 68% | 2749 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 88% | 40,596 psi | 64% | 2677 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 96% | 46,528 psi | 73% | 2848 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 47,297 psi | 74% | 2694 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 49,530 psi | 78% | 2805 fps | 99.6% |
| Winchester StaBALL HD | 61.1 gr | 80% | 30,618 psi | 48% | 2549 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,448 psi | 57% | 2520 fps | 95.4% |
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 72 powders for 7 mm Weath. Mag. loaded with the .284 | 160gr | Speer Magnum Tip Soft Point. Hodgdon Retumbo delivers the highest muzzle velocity at 3,094 fps; across all powders the maximum-charge window runs from 1,814 fps to 3,094 fps. ADI AR 2217 gives the best case fill at 100 %, and 72 of the 72 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 160.0 gr projectile in 0.284" calls for a 1:12.5 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. Accurate High Country, Hodgdon Retumbo, Winchester StaBALL HD rank at the top here: for 7 mm Weath. Mag. with the .284 | 160gr | Speer Magnum Tip Soft Point 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.