Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 160gr | CutEdge MTH bullet and 77 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Ramshot Grand and Alliant Reloder-26.
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% | 56,173 psi | 88% | 2871 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 54,056 psi | 85% | 2854 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 55,085 psi | 86% | 2969 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 82% | 55,666 psi | 87% | 2818 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 55,259 psi | 87% | 2913 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 96% | 56,739 psi | 89% | 2976 fps | 98.8% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 47,253 psi | 74% | 2805 fps | 97.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,771 psi | 65% | 2756 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 56,724 psi | 89% | 2838 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 55,303 psi | 87% | 2913 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 56,478 psi | 89% | 2927 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 54,636 psi | 86% | 2897 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 96% | 56,478 psi | 89% | 2969 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 98% | 57,348 psi | 90% | 2933 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 53,127 psi | 83% | 2943 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 54,012 psi | 85% | 2969 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 54,969 psi | 86% | 2874 fps | 95.8% |
| Bofors RP15 | <<locked>> | 98% | 55,347 psi | 87% | 2949 fps | 99.4% |
| Bofors RP30ᴾ | <<locked>> | 100% | 49,066 psi | 77% | 2874 fps | 98.1% |
| Bofors RP5 | <<locked>> | 96% | 56,478 psi | 89% | 2969 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 56,884 psi | 89% | 2858 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 52,040 psi | 82% | 2894 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 86% | 56,115 psi | 88% | 2910 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 55,172 psi | 86% | 2867 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 94% | 56,681 psi | 89% | 2913 fps | 98.3% |
| Hodgdon H4831 SC | <<locked>> | 94% | 55,303 psi | 87% | 2894 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 55,637 psi | 87% | 2838 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,895 psi | 81% | 3002 fps | 99.7% |
| Hodgdon Superformance | <<locked>> | 86% | 56,710 psi | 89% | 2949 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,883 psi | 58% | 1791 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 55,013 psi | 86% | 2844 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 54,984 psi | 86% | 2828 fps | 99.8% |
| IMR 4831 | <<locked>> | 88% | 54,578 psi | 86% | 2848 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 57,740 psi | 90% | 2897 fps | 98.5% |
| IMR 7828 SSC | <<locked>> | 96% | 54,259 psi | 85% | 2946 fps | 98.6% |
| Lovex S065 | <<locked>> | 86% | 55,390 psi | 87% | 2825 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 56,855 psi | 89% | 2871 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,534 psi | 84% | 2831 fps | 100% |
| Norma 204 | <<locked>> | 88% | 55,796 psi | 87% | 2897 fps | 99.3% |
| Norma 217ᴾ | <<locked>> | 100% | 37,304 psi | 58% | 2677 fps | 96.9% |
| Norma MRP | <<locked>> | 94% | 56,231 psi | 88% | 2989 fps | 100% |
| Norma URP | <<locked>> | 88% | 56,275 psi | 88% | 2890 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 55,027 psi | 86% | 2969 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 55,187 psi | 86% | 2897 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 57,566 psi | 90% | 2966 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,739 psi | 59% | 1837 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 57,682 psi | 90% | 2867 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 55,956 psi | 88% | 2913 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 54,172 psi | 85% | 2877 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 56,376 psi | 88% | 2963 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 52,518 psi | 82% | 3002 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 47,253 psi | 74% | 2874 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 82% | 54,505 psi | 85% | 2805 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 56,463 psi | 88% | 2884 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 94% | 57,711 psi | 90% | 2943 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 86% | 56,884 psi | 89% | 2858 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 86% | 55,390 psi | 87% | 2825 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 56,855 psi | 89% | 2871 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 56,202 psi | 88% | 2864 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 54,781 psi | 86% | 2684 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 54,549 psi | 85% | 2779 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 57,261 psi | 90% | 2940 fps | 99.6% |
| Somchem S355 | <<locked>> | 84% | 57,711 psi | 90% | 2848 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 54,215 psi | 85% | 2818 fps | 97.8% |
| Somchem S365 | <<locked>> | 90% | 56,768 psi | 89% | 2894 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 54,418 psi | 85% | 2858 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 84% | 55,593 psi | 87% | 2776 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 54,636 psi | 86% | 2831 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 57,711 psi | 90% | 2894 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 57,493 psi | 90% | 2890 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 55,854 psi | 88% | 2907 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 56,130 psi | 88% | 2986 fps | 98.5% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 55,709 psi | 87% | 2959 fps | 98.6% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 54,114 psi | 85% | 2792 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 56,115 psi | 88% | 2910 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 98% | 54,998 psi | 86% | 3015 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 54,404 psi | 85% | 2854 fps | 99.2% |
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% | 32,358 psi | 51% | 2421 fps | 96.5% |
| Accurate 4350 | <<locked>> | 80% | 43,918 psi | 69% | 2684 fps | 99.9% |
| Accurate MAGPRO | 65.8 gr | 88% | 44,353 psi | 70% | 2772 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 52,228 psi | 82% | 2766 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 36,811 psi | 58% | 2556 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 88% | 43,047 psi | 67% | 2726 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 96% | 41,220 psi | 65% | 2680 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 92% | 32,184 psi | 50% | 2510 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 53,447 psi | 84% | 2792 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,308 psi | 66% | 2694 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,820 psi | 77% | 2812 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 36,811 psi | 58% | 2552 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 84% | 37,304 psi | 58% | 2605 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,299 psi | 49% | 2454 fps | 99.2% |
| Alliant Reloder-25 | <<locked>> | 82% | 29,095 psi | 46% | 2411 fps | 95.5% |
| Alliant Reloder-26 | 60.5 gr | 80% | 33,968 psi | 53% | 2585 fps | 98.4% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 51,619 psi | 81% | 2815 fps | 95% |
| Bofors RP15 | <<locked>> | 86% | 36,999 psi | 58% | 2595 fps | 95.3% |
| Bofors RP30 | <<locked>> | 94% | 39,639 psi | 62% | 2687 fps | 95.6% |
| Bofors RP5 | <<locked>> | 84% | 37,304 psi | 58% | 2605 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 46,876 psi | 73% | 2690 fps | 98.8% |
| Hodgdon H1000 | <<locked>> | 92% | 39,552 psi | 62% | 2648 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 80% | 45,701 psi | 72% | 2733 fps | 99% |
| Hodgdon H4350 | <<locked>> | 80% | 48,530 psi | 76% | 2756 fps | 98.6% |
| Hodgdon H4831 | <<locked>> | 86% | 43,091 psi | 68% | 2674 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 88% | 45,208 psi | 71% | 2717 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,740 psi | 62% | 2579 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 37,130 psi | 58% | 2680 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 45,252 psi | 71% | 2759 fps | 98.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,644 psi | 43% | 1601 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,583 psi | 67% | 2625 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,472 psi | 76% | 2720 fps | 99.3% |
| IMR 4831 | <<locked>> | 80% | 41,843 psi | 66% | 2631 fps | 99.8% |
| IMR 4955 Enduron | <<locked>> | 84% | 41,989 psi | 66% | 2615 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 88% | 41,307 psi | 65% | 2700 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 45,948 psi | 72% | 2671 fps | 99.7% |
| Lovex S070 | <<locked>> | 80% | 44,193 psi | 69% | 2657 fps | 98.9% |
| Lovex S071 | <<locked>> | 82% | 29,704 psi | 47% | 2352 fps | 95.3% |
| Norma 204 | <<locked>> | 80% | 42,380 psi | 66% | 2657 fps | 96.9% |
| Norma 217 | <<locked>> | 98% | 34,824 psi | 55% | 2615 fps | 95.9% |
| Norma MRP | <<locked>> | 80% | 33,895 psi | 53% | 2549 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 43,352 psi | 68% | 2677 fps | 99.9% |
| Ramshot Grand | 64.1 gr | 88% | 41,046 psi | 64% | 2707 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 42,134 psi | 66% | 2667 fps | 99% |
| Ramshot Magnum | <<locked>> | 86% | 33,866 psi | 53% | 2516 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,094 psi | 44% | 1637 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 53,896 psi | 84% | 2812 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 51,909 psi | 81% | 2854 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,961 psi | 69% | 2707 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,366 psi | 66% | 2723 fps | 99.7% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 33,750 psi | 53% | 2589 fps | 95.8% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 43,801 psi | 69% | 2805 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 80% | 50,995 psi | 80% | 2753 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 40,857 psi | 64% | 2598 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 80% | 36,042 psi | 56% | 2536 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 46,876 psi | 73% | 2690 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,948 psi | 72% | 2671 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 80% | 44,193 psi | 69% | 2657 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 52,460 psi | 82% | 2808 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,300 psi | 80% | 2635 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,846 psi | 70% | 2618 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 35,723 psi | 56% | 2530 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 50,966 psi | 80% | 2749 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 44,295 psi | 69% | 2644 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 40,190 psi | 63% | 2631 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,477 psi | 57% | 2520 fps | 96.2% |
| Vihtavuori N150 | <<locked>> | 80% | 48,776 psi | 76% | 2674 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,802 psi | 70% | 2674 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 36,129 psi | 57% | 2507 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 44,063 psi | 69% | 2674 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 35,041 psi | 55% | 2530 fps | 99.1% |
| Vihtavuori N560 | <<locked>> | 86% | 42,308 psi | 66% | 2730 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 92% | 42,163 psi | 66% | 2713 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,932 psi | 69% | 2638 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,919 psi | 72% | 2740 fps | 99.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,528 psi | 43% | 2454 fps | 99.1% |
| Winchester Supreme 780 | <<locked>> | 84% | 38,247 psi | 60% | 2559 fps | 95.8% |
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 83 powders for 7 mm Weath. Mag. loaded with the .284 | 160gr | CutEdge MTH. Winchester StaBALL HD delivers the highest muzzle velocity at 3,015 fps; across all powders the maximum-charge window runs from 1,791 fps to 3,015 fps. ADI AR 2217 gives the best case fill at 100 %, and 83 of the 83 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 1:9.0 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. Accurate MAGPRO, Ramshot Grand, Alliant Reloder-26 rank at the top here: for 7 mm Weath. Mag. with the .284 | 160gr | CutEdge MTH they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-33, IMR 7977 Enduron, IMR 8133 Enduron burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.