Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 170gr | Geco SOFTPOINT bullet and 69 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and Ramshot Grand.
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% | 56,608 psi | 89% | 2802 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 57,667 psi | 90% | 2825 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 55,434 psi | 87% | 2900 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 88% | 54,694 psi | 86% | 2831 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 92% | 56,376 psi | 88% | 2900 fps | 99.4% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 54,375 psi | 85% | 2867 fps | 99.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 48,834 psi | 77% | 2831 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 55,042 psi | 86% | 2828 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 54,404 psi | 85% | 2825 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 56,652 psi | 89% | 2894 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 54,563 psi | 86% | 2808 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 57,682 psi | 90% | 2927 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 54,810 psi | 86% | 2894 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 57,348 psi | 90% | 2861 fps | 97.5% |
| Bofors RP15 | <<locked>> | 94% | 55,825 psi | 87% | 2881 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 57,479 psi | 90% | 2936 fps | 99.7% |
| Bofors RP5 | <<locked>> | 92% | 56,652 psi | 89% | 2894 fps | 99.9% |
| Bofors RP7 | <<locked>> | 82% | 55,724 psi | 87% | 2772 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 55,927 psi | 88% | 2890 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 82% | 55,405 psi | 87% | 2825 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 55,941 psi | 88% | 2835 fps | 98.9% |
| Hodgdon H4831 SC | <<locked>> | 90% | 54,955 psi | 86% | 2818 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 55,201 psi | 87% | 2753 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 56,594 psi | 89% | 3005 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 55,782 psi | 87% | 2861 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,420 psi | 59% | 1768 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 57,464 psi | 90% | 2812 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 57,043 psi | 89% | 2792 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 54,360 psi | 85% | 2766 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 56,768 psi | 89% | 2818 fps | 99.1% |
| IMR 7828 SSC | <<locked>> | 92% | 54,375 psi | 85% | 2877 fps | 99.2% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 44,411 psi | 70% | 2740 fps | 97.8% |
| Lovex S065 | <<locked>> | 82% | 54,476 psi | 85% | 2740 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 56,173 psi | 88% | 2789 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 54,346 psi | 85% | 2769 fps | 100% |
| Norma 204 | <<locked>> | 84% | 54,911 psi | 86% | 2815 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 44,628 psi | 70% | 2762 fps | 99.5% |
| Norma MRP | <<locked>> | 90% | 56,681 psi | 89% | 2913 fps | 100% |
| Norma URP | <<locked>> | 84% | 55,854 psi | 88% | 2805 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 55,230 psi | 87% | 2900 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 84% | 54,679 psi | 86% | 2812 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 57,653 psi | 90% | 2890 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,348 psi | 60% | 1811 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 53,940 psi | 85% | 2795 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 56,260 psi | 88% | 2877 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 57,319 psi | 90% | 2999 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 56,637 psi | 89% | 2963 fps | 99% |
| Rottweil R 904 | <<locked>> | 88% | 55,564 psi | 87% | 2802 fps | 99.3% |
| Rottweil R 905 | <<locked>> | 90% | 57,479 psi | 90% | 2867 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 82% | 55,724 psi | 87% | 2772 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 54,476 psi | 85% | 2740 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 56,173 psi | 88% | 2789 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 56,898 psi | 89% | 2746 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 57,058 psi | 89% | 2864 fps | 99.9% |
| Somchem S361 | <<locked>> | 88% | 57,072 psi | 89% | 2799 fps | 99% |
| Somchem S365 | <<locked>> | 86% | 56,739 psi | 89% | 2808 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 54,404 psi | 85% | 2789 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 84% | 57,551 psi | 90% | 2799 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 57,609 psi | 90% | 2822 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 56,826 psi | 89% | 2805 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 56,478 psi | 89% | 2835 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 56,347 psi | 88% | 2913 fps | 99.1% |
| Vihtavuori N565 | <<locked>> | 96% | 56,318 psi | 88% | 2897 fps | 99.3% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 57,348 psi | 90% | 2959 fps | 98.7% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 54,215 psi | 85% | 2953 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 56,884 psi | 89% | 2753 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 55,637 psi | 87% | 2828 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 56,942 psi | 89% | 2946 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 54,143 psi | 85% | 2782 fps | 99.7% |
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% | 37,913 psi | 59% | 2480 fps | 98.9% |
| Accurate 4350 | <<locked>> | 80% | 50,357 psi | 79% | 2717 fps | 100% |
| Accurate MAGPRO | <<locked>> | 82% | 41,858 psi | 66% | 2651 fps | 95.4% |
| ADI AR 2209 | <<locked>> | 80% | 41,887 psi | 66% | 2605 fps | 97.8% |
| ADI AR 2213 | <<locked>> | 80% | 37,478 psi | 59% | 2536 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 90% | 38,769 psi | 61% | 2569 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 86% | 30,792 psi | 48% | 2415 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 48,283 psi | 76% | 2723 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 41,887 psi | 66% | 2598 fps | 97.8% |
| Alliant Reloder-22 | <<locked>> | 80% | 37,869 psi | 59% | 2546 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 36,535 psi | 57% | 2503 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,633 psi | 50% | 2425 fps | 97.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 40,582 psi | 64% | 2654 fps | 99.9% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 47,659 psi | 75% | 2687 fps | 95.2% |
| Bofors RP15 | <<locked>> | 80% | 35,259 psi | 55% | 2484 fps | 95.7% |
| Bofors RP30 | <<locked>> | 86% | 35,737 psi | 56% | 2526 fps | 95.1% |
| Bofors RP5 | <<locked>> | 80% | 37,869 psi | 59% | 2546 fps | 96.8% |
| Bofors RP7 | <<locked>> | 80% | 52,257 psi | 82% | 2717 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 86% | 37,057 psi | 58% | 2530 fps | 96% |
| Hodgdon H414 | <<locked>> | 80% | 51,909 psi | 81% | 2769 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 40,001 psi | 63% | 2543 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 80% | 39,291 psi | 62% | 2530 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 45,469 psi | 71% | 2605 fps | 100% |
| Hodgdon Retumbo | 61.1 gr | 82% | 32,967 psi | 52% | 2503 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 51,982 psi | 81% | 2802 fps | 99.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,065 psi | 44% | 1578 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 47,674 psi | 75% | 2654 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 53,548 psi | 84% | 2740 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 47,659 psi | 75% | 2661 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 41,466 psi | 65% | 2543 fps | 96.1% |
| IMR 7828 SSC | <<locked>> | 82% | 38,725 psi | 61% | 2579 fps | 95.7% |
| IMR 8133 Enduron | <<locked>> | 94% | 36,274 psi | 57% | 2559 fps | 95.1% |
| Lovex S065 | <<locked>> | 80% | 51,140 psi | 80% | 2687 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 49,676 psi | 78% | 2687 fps | 99.9% |
| Lovex S071 | <<locked>> | 80% | 32,750 psi | 51% | 2362 fps | 97.5% |
| Norma 204 | <<locked>> | 80% | 48,124 psi | 75% | 2700 fps | 98.9% |
| Norma 217 | <<locked>> | 90% | 31,807 psi | 50% | 2464 fps | 95.6% |
| Norma MRP | <<locked>> | 80% | 39,769 psi | 62% | 2615 fps | 98.5% |
| Norma URP | <<locked>> | 80% | 49,197 psi | 77% | 2703 fps | 100% |
| Ramshot Grand | 62.9 gr | 82% | 38,348 psi | 60% | 2582 fps | 96% |
| Ramshot Hunter | <<locked>> | 80% | 48,080 psi | 75% | 2707 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 31,894 psi | 50% | 2405 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,776 psi | 45% | 1617 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 50,488 psi | 79% | 2743 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 48,631 psi | 76% | 2759 fps | 100% |
| ReloadSwiss RS 76 | 63.9 gr | 80% | 29,950 psi | 47% | 2415 fps | 95% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 41,698 psi | 65% | 2694 fps | 95.6% |
| Rottweil R 904 | <<locked>> | 80% | 43,134 psi | 68% | 2582 fps | 97.1% |
| Rottweil R 905 | <<locked>> | 80% | 41,437 psi | 65% | 2589 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 80% | 52,257 psi | 82% | 2717 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 51,140 psi | 80% | 2687 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 49,676 psi | 78% | 2687 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 50,212 psi | 79% | 2644 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 41,104 psi | 64% | 2582 fps | 97.8% |
| Somchem S361 | <<locked>> | 80% | 43,830 psi | 69% | 2572 fps | 96.5% |
| Somchem S365 | <<locked>> | 80% | 46,485 psi | 73% | 2657 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 41,945 psi | 66% | 2569 fps | 98.6% |
| Vihtavuori N160 | <<locked>> | 80% | 50,488 psi | 79% | 2694 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 36,376 psi | 57% | 2448 fps | 96.9% |
| Vihtavuori N550 | <<locked>> | 80% | 49,821 psi | 78% | 2700 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 41,002 psi | 64% | 2582 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 39,755 psi | 62% | 2605 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 84% | 37,652 psi | 59% | 2543 fps | 95% |
| Vihtavuori N568 | <<locked>> | 92% | 43,192 psi | 68% | 2710 fps | 95.4% |
| Vihtavuori N570 | <<locked>> | 98% | 50,357 psi | 79% | 2884 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 49,835 psi | 78% | 2654 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 51,909 psi | 81% | 2769 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 33,301 psi | 52% | 2539 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 38,406 psi | 60% | 2497 fps | 96.9% |
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 69 powders for 7 mm Weath. Mag. loaded with the .284 | 170gr | Geco SOFTPOINT. Hodgdon Retumbo delivers the highest muzzle velocity at 3,005 fps; across all powders the maximum-charge window runs from 1,768 fps to 3,005 fps. ADI AR 2217 gives the best case fill at 100 %, and 69 of the 69 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 170.0 gr projectile in 0.284" calls for a 1:13.0 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, ReloadSwiss RS 76, Ramshot Grand rank at the top here: for 7 mm Weath. Mag. with the .284 | 170gr | Geco SOFTPOINT 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.