Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 170gr | Norma VULKAN bullet and 72 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 Vihtavuori N560.
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% | 55,840 psi | 88% | 2789 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 57,101 psi | 89% | 2815 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 57,493 psi | 90% | 2940 fps | 99.5% |
| Accurate MAGPRO | <<locked>> | 90% | 54,491 psi | 85% | 2884 fps | 98.4% |
| ADI AR 2209 | <<locked>> | 90% | 57,740 psi | 90% | 2877 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 92% | 55,695 psi | 87% | 2887 fps | 99.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 53,534 psi | 84% | 2851 fps | 99.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 48,051 psi | 75% | 2815 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 54,447 psi | 85% | 2818 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 57,305 psi | 90% | 2867 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 55,941 psi | 88% | 2881 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 94% | 57,276 psi | 90% | 2848 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 56,681 psi | 89% | 2910 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 53,766 psi | 84% | 2881 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 56,695 psi | 89% | 2844 fps | 97.3% |
| Bofors RP15 | <<locked>> | 94% | 54,882 psi | 86% | 2864 fps | 99.7% |
| Bofors RP30ᴾ | <<locked>> | 100% | 56,536 psi | 89% | 2920 fps | 99.6% |
| Bofors RP5 | <<locked>> | 92% | 55,941 psi | 88% | 2881 fps | 99.8% |
| Bofors RP7 | <<locked>> | 82% | 55,201 psi | 87% | 2759 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 98% | 55,085 psi | 86% | 2877 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 82% | 54,824 psi | 86% | 2815 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 57,029 psi | 89% | 2825 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 90% | 55,274 psi | 87% | 2822 fps | 98.8% |
| Hodgdon H4831 SC | <<locked>> | 90% | 54,288 psi | 85% | 2805 fps | 98.6% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 54,650 psi | 86% | 2743 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 55,637 psi | 87% | 2989 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 55,056 psi | 86% | 2848 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,376 psi | 59% | 1762 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 56,985 psi | 89% | 2802 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 56,550 psi | 89% | 2782 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 57,203 psi | 90% | 2805 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 56,115 psi | 88% | 2805 fps | 99% |
| IMR 7828 SSC | <<locked>> | 94% | 57,479 psi | 90% | 2923 fps | 99.5% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 43,555 psi | 68% | 2720 fps | 97.6% |
| Lovex S065 | <<locked>> | 84% | 57,290 psi | 90% | 2779 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 55,666 psi | 87% | 2779 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 57,130 psi | 90% | 2808 fps | 100% |
| Norma 204 | <<locked>> | 84% | 54,404 psi | 85% | 2802 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 43,976 psi | 69% | 2746 fps | 99.3% |
| Norma MRP | <<locked>> | 90% | 55,695 psi | 87% | 2900 fps | 100% |
| Norma URP | <<locked>> | 84% | 55,303 psi | 87% | 2795 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 54,462 psi | 85% | 2887 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 84% | 54,172 psi | 85% | 2802 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 56,942 psi | 89% | 2881 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,305 psi | 60% | 1804 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 57,000 psi | 89% | 2835 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 55,463 psi | 87% | 2864 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 56,434 psi | 88% | 2989 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 55,550 psi | 87% | 2943 fps | 98.8% |
| Rottweil R 904 | <<locked>> | 88% | 55,085 psi | 86% | 2792 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 90% | 56,942 psi | 89% | 2858 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 82% | 55,201 psi | 87% | 2759 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 84% | 57,290 psi | 90% | 2779 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 55,666 psi | 87% | 2779 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 56,405 psi | 88% | 2736 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 56,521 psi | 89% | 2851 fps | 99.8% |
| Somchem S361 | <<locked>> | 88% | 56,463 psi | 88% | 2785 fps | 98.9% |
| Somchem S365 | <<locked>> | 86% | 56,115 psi | 88% | 2799 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 57,348 psi | 90% | 2828 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 57,305 psi | 90% | 2720 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 57,029 psi | 89% | 2789 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 56,942 psi | 89% | 2812 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 56,072 psi | 88% | 2792 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 55,941 psi | 88% | 2825 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 55,376 psi | 87% | 2897 fps | 99% |
| Vihtavuori N565 | <<locked>> | 96% | 55,666 psi | 87% | 2884 fps | 99.1% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 56,463 psi | 88% | 2946 fps | 98.5% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 53,345 psi | 84% | 2936 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 56,202 psi | 88% | 2743 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 54,824 psi | 86% | 2815 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 55,753 psi | 87% | 2930 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 57,261 psi | 90% | 2828 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% | 37,376 psi | 59% | 2467 fps | 98.8% |
| Accurate 4350 | <<locked>> | 80% | 49,748 psi | 78% | 2707 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 40,727 psi | 64% | 2635 fps | 96.4% |
| Accurate MAGPRO | <<locked>> | 82% | 41,191 psi | 65% | 2635 fps | 95.1% |
| ADI AR 2209 | <<locked>> | 80% | 41,379 psi | 65% | 2592 fps | 97.6% |
| ADI AR 2213 | <<locked>> | 82% | 39,494 psi | 62% | 2582 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 90% | 38,218 psi | 60% | 2552 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 86% | 30,472 psi | 48% | 2402 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 47,645 psi | 75% | 2710 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 41,394 psi | 65% | 2585 fps | 97.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 37,391 psi | 59% | 2536 fps | 96.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 36,143 psi | 57% | 2493 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,198 psi | 49% | 2411 fps | 97.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 39,856 psi | 62% | 2638 fps | 99.9% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 50,111 psi | 79% | 2730 fps | 95.8% |
| Bofors RP15 | <<locked>> | 80% | 34,766 psi | 54% | 2470 fps | 95.4% |
| Bofors RP30 | <<locked>> | 88% | 37,652 psi | 59% | 2569 fps | 95.8% |
| Bofors RP5 | <<locked>> | 80% | 37,391 psi | 59% | 2536 fps | 96.6% |
| Bofors RP7 | <<locked>> | 80% | 51,706 psi | 81% | 2703 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 86% | 36,492 psi | 57% | 2513 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 80% | 51,372 psi | 81% | 2759 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 80% | 53,679 psi | 84% | 2772 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 80% | 39,363 psi | 62% | 2530 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 82% | 41,394 psi | 65% | 2572 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 44,904 psi | 70% | 2592 fps | 100% |
| Hodgdon Retumbo | 60.4 gr | 82% | 32,547 psi | 51% | 2490 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 51,242 psi | 80% | 2789 fps | 99.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,108 psi | 44% | 1575 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 47,181 psi | 74% | 2644 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 53,055 psi | 83% | 2730 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 47,108 psi | 74% | 2651 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 41,017 psi | 64% | 2533 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 82% | 38,247 psi | 60% | 2566 fps | 95.4% |
| IMR 8133 Enduron | <<locked>> | 96% | 38,087 psi | 60% | 2602 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 50,821 psi | 80% | 2680 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 49,139 psi | 77% | 2674 fps | 99.8% |
| Lovex S071 | <<locked>> | 80% | 32,242 psi | 51% | 2349 fps | 97.3% |
| Norma 204 | <<locked>> | 80% | 47,413 psi | 74% | 2687 fps | 98.7% |
| Norma 217 | <<locked>> | 90% | 31,401 psi | 49% | 2451 fps | 95.3% |
| Norma MRP | <<locked>> | 80% | 39,262 psi | 62% | 2602 fps | 98.4% |
| Norma URP | <<locked>> | 80% | 48,617 psi | 76% | 2690 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 37,898 psi | 59% | 2569 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 47,355 psi | 74% | 2690 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 80% | 31,488 psi | 49% | 2392 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,631 psi | 45% | 1611 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 49,719 psi | 78% | 2726 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 48,095 psi | 75% | 2749 fps | 100% |
| ReloadSwiss RS 76 | 64.7 gr | 82% | 31,662 psi | 50% | 2467 fps | 96% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 40,901 psi | 64% | 2677 fps | 95.3% |
| Rottweil R 904 | <<locked>> | 80% | 42,641 psi | 67% | 2569 fps | 96.9% |
| Rottweil R 905 | <<locked>> | 80% | 40,901 psi | 64% | 2575 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 80% | 51,706 psi | 81% | 2703 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 50,821 psi | 80% | 2680 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 49,139 psi | 77% | 2674 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,705 psi | 78% | 2631 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 40,582 psi | 64% | 2569 fps | 97.6% |
| Somchem S361 | <<locked>> | 80% | 43,453 psi | 68% | 2562 fps | 96.3% |
| Somchem S365 | <<locked>> | 80% | 45,861 psi | 72% | 2648 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 41,466 psi | 65% | 2559 fps | 98.5% |
| Vihtavuori N150 | <<locked>> | 80% | 53,896 psi | 84% | 2671 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 49,937 psi | 78% | 2684 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,926 psi | 56% | 2434 fps | 96.7% |
| Vihtavuori N550 | <<locked>> | 80% | 49,313 psi | 77% | 2690 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 40,422 psi | 63% | 2569 fps | 100% |
| Vihtavuori N560 | 61.2 gr | 80% | 39,291 psi | 62% | 2592 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 86% | 39,610 psi | 62% | 2585 fps | 95.6% |
| Vihtavuori N568 | <<locked>> | 92% | 42,366 psi | 66% | 2690 fps | 95.1% |
| Vihtavuori N570 | <<locked>> | 98% | 49,516 psi | 78% | 2864 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 49,139 psi | 77% | 2644 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 51,372 psi | 81% | 2759 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 32,518 psi | 51% | 2526 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,942 psi | 59% | 2487 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 72 powders for 7 mm Weath. Mag. loaded with the .284 | 170gr | Norma VULKAN. Hodgdon Retumbo delivers the highest muzzle velocity at 2,989 fps; across all powders the maximum-charge window runs from 1,762 fps to 2,989 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 59–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.284" calls for a 1:12.0 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, Vihtavuori N560 rank at the top here: for 7 mm Weath. Mag. with the .284 | 170gr | Norma VULKAN 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.