Load Specifications
Load data in caliber 7 mm Rem. Mag. with .284 | 175gr | Sierra MatchKing bullet and 73 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Norma MRP 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>> | 94% | 54,317 psi | 87% | 2703 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 55,724 psi | 89% | 2730 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 52,750 psi | 85% | 2792 fps | 97.8% |
| ADI AR 2209 | <<locked>> | 92% | 56,347 psi | 90% | 2785 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 94% | 53,940 psi | 86% | 2789 fps | 98.8% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,385 psi | 78% | 2694 fps | 98.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,134 psi | 69% | 2661 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 86% | 52,982 psi | 85% | 2733 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 53,896 psi | 86% | 2743 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 55,767 psi | 89% | 2776 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 94% | 53,911 psi | 86% | 2789 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 96% | 55,143 psi | 88% | 2759 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 54,447 psi | 87% | 2822 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 55,477 psi | 89% | 2848 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 55,869 psi | 90% | 2753 fps | 96.6% |
| Bofors RP15 | <<locked>> | 96% | 53,127 psi | 85% | 2772 fps | 99.4% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,343 psi | 81% | 2762 fps | 98.8% |
| Bofors RP5 | <<locked>> | 94% | 53,911 psi | 86% | 2789 fps | 99.6% |
| Bofors RP7 | <<locked>> | 84% | 54,737 psi | 88% | 2680 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,447 psi | 86% | 2779 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 84% | 53,693 psi | 86% | 2730 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 82% | 52,823 psi | 85% | 2687 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 92% | 54,056 psi | 87% | 2733 fps | 98.3% |
| Hodgdon H4831 SC | <<locked>> | 92% | 52,982 psi | 85% | 2717 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 53,243 psi | 85% | 2661 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,345 psi | 86% | 2887 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 53,867 psi | 86% | 2766 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,173 psi | 60% | 1690 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,086 psi | 90% | 2720 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,014 psi | 90% | 2700 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 55,898 psi | 90% | 2720 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,172 psi | 88% | 2717 fps | 98.5% |
| IMR 7828 SSC | <<locked>> | 96% | 55,709 psi | 89% | 2828 fps | 99.1% |
| Lovex S065 | <<locked>> | 84% | 53,388 psi | 86% | 2651 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 54,897 psi | 88% | 2697 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 55,129 psi | 88% | 2713 fps | 100% |
| Norma 204 | <<locked>> | 86% | 53,301 psi | 85% | 2717 fps | 99.3% |
| Norma 217ᴾ | <<locked>> | 100% | 38,638 psi | 62% | 2585 fps | 98% |
| Norma MRP | <<locked>> | 92% | 53,795 psi | 86% | 2808 fps | 100% |
| Norma URP | <<locked>> | 86% | 54,244 psi | 87% | 2717 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 56,362 psi | 90% | 2848 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 52,837 psi | 85% | 2720 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 54,534 psi | 87% | 2782 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,927 psi | 61% | 1729 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 55,651 psi | 89% | 2756 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 53,838 psi | 86% | 2779 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 53,722 psi | 86% | 2884 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 48,646 psi | 78% | 2772 fps | 97.2% |
| Rottweil R 903 | <<locked>> | 82% | 56,043 psi | 90% | 2677 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 54,128 psi | 87% | 2703 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 92% | 55,434 psi | 89% | 2766 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 84% | 54,737 psi | 88% | 2680 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 84% | 53,388 psi | 86% | 2651 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 54,897 psi | 88% | 2697 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,724 psi | 89% | 2552 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 55,854 psi | 90% | 2654 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 54,998 psi | 88% | 2762 fps | 99.6% |
| Somchem S355 | <<locked>> | 82% | 55,651 psi | 89% | 2671 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 55,550 psi | 89% | 2700 fps | 98.4% |
| Somchem S365 | <<locked>> | 88% | 54,447 psi | 87% | 2717 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 55,854 psi | 90% | 2740 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 53,374 psi | 86% | 2598 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 55,970 psi | 90% | 2707 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 55,434 psi | 89% | 2723 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 86% | 55,013 psi | 88% | 2713 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,099 psi | 87% | 2740 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 53,708 psi | 86% | 2805 fps | 98.5% |
| Vihtavuori N565 | <<locked>> | 98% | 53,200 psi | 85% | 2782 fps | 98.6% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 49,821 psi | 80% | 2776 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,288 psi | 89% | 2667 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 53,983 psi | 87% | 2733 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 52,272 psi | 84% | 2838 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 55,840 psi | 90% | 2736 fps | 99.6% |
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% | 33,852 psi | 54% | 2336 fps | 97.6% |
| Accurate 4350 | <<locked>> | 80% | 45,397 psi | 73% | 2572 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 42,714 psi | 68% | 2608 fps | 95.3% |
| ADI AR 2209 | <<locked>> | 80% | 38,043 psi | 61% | 2457 fps | 96.3% |
| ADI AR 2213 | <<locked>> | 84% | 38,711 psi | 62% | 2503 fps | 95% |
| ADI AR 2217 | <<locked>> | 94% | 39,740 psi | 64% | 2523 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 90% | 31,227 psi | 50% | 2369 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,671 psi | 70% | 2582 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,198 psi | 80% | 2690 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,884 psi | 61% | 2451 fps | 96.3% |
| Alliant Reloder-22 | <<locked>> | 82% | 36,071 psi | 58% | 2451 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,561 psi | 52% | 2365 fps | 99.7% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,456 psi | 46% | 2280 fps | 96.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,462 psi | 57% | 2497 fps | 99.3% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 49,385 psi | 79% | 2644 fps | 95% |
| Bofors RP15 | <<locked>> | 84% | 35,969 psi | 58% | 2448 fps | 95.6% |
| Bofors RP30 | <<locked>> | 92% | 38,348 psi | 61% | 2533 fps | 95.8% |
| Bofors RP5 | <<locked>> | 82% | 36,071 psi | 58% | 2451 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 48,312 psi | 77% | 2579 fps | 99.3% |
| Hodgdon H1000 | <<locked>> | 90% | 38,014 psi | 61% | 2487 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 80% | 47,079 psi | 75% | 2621 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 80% | 49,647 psi | 80% | 2635 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 84% | 41,191 psi | 66% | 2507 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 84% | 40,582 psi | 65% | 2493 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,104 psi | 66% | 2470 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 33,649 psi | 54% | 2464 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 46,572 psi | 75% | 2648 fps | 99.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,731 psi | 44% | 1506 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,772 psi | 70% | 2516 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,530 psi | 79% | 2598 fps | 99.6% |
| IMR 4831 | <<locked>> | 80% | 43,279 psi | 69% | 2523 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 40,480 psi | 65% | 2457 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 86% | 39,653 psi | 64% | 2533 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 47,181 psi | 76% | 2552 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 45,527 psi | 73% | 2546 fps | 99.4% |
| Lovex S071 | <<locked>> | 80% | 29,283 psi | 47% | 2224 fps | 95.9% |
| Norma 204 | <<locked>> | 80% | 43,729 psi | 70% | 2552 fps | 97.7% |
| Norma 217 | <<locked>> | 94% | 31,778 psi | 51% | 2415 fps | 95.2% |
| Norma MRP | 54.9 gr | 80% | 35,215 psi | 56% | 2461 fps | 97% |
| Norma URP | <<locked>> | 80% | 44,686 psi | 72% | 2562 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 39,479 psi | 63% | 2546 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 43,497 psi | 70% | 2562 fps | 99.5% |
| Ramshot Magnum | <<locked>> | 84% | 32,619 psi | 52% | 2369 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,471 psi | 46% | 1545 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,455 psi | 73% | 2595 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,555 psi | 70% | 2612 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 32,692 psi | 52% | 2441 fps | 96.1% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 41,843 psi | 67% | 2641 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 80% | 52,562 psi | 84% | 2631 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 39,349 psi | 63% | 2438 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 80% | 37,202 psi | 60% | 2438 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 80% | 48,312 psi | 77% | 2579 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,181 psi | 76% | 2552 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 45,527 psi | 73% | 2546 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,562 psi | 84% | 2510 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,195 psi | 74% | 2507 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 36,869 psi | 59% | 2431 fps | 96.1% |
| Somchem S355 | <<locked>> | 80% | 52,257 psi | 84% | 2625 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 42,714 psi | 68% | 2484 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 41,698 psi | 67% | 2523 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,840 psi | 61% | 2425 fps | 97.3% |
| Vihtavuori N150 | <<locked>> | 80% | 50,111 psi | 80% | 2552 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,948 psi | 74% | 2556 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 32,706 psi | 52% | 2303 fps | 95.1% |
| Vihtavuori N550 | <<locked>> | 80% | 45,440 psi | 73% | 2562 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 36,506 psi | 59% | 2434 fps | 99.7% |
| Vihtavuori N560 | 57.7 gr | 84% | 40,799 psi | 65% | 2569 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 90% | 40,640 psi | 65% | 2556 fps | 95.7% |
| Vihtavuori N568 | <<locked>> | 96% | 43,497 psi | 70% | 2657 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,107 psi | 72% | 2523 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,297 psi | 76% | 2625 fps | 99.5% |
| Winchester StaBALL HD | 54.4 gr | 80% | 28,950 psi | 46% | 2385 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,432 psi | 55% | 2349 fps | 95% |
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 Rem. Mag. loaded with the .284 | 175gr | Sierra MatchKing. Hodgdon Retumbo delivers the highest muzzle velocity at 2,887 fps; across all powders the maximum-charge window runs from 1,690 fps to 2,887 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 (430 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.284" calls for a 1:10.0 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. Winchester StaBALL HD, Norma MRP, Vihtavuori N560 rank at the top here: for 7 mm Rem. Mag. with the .284 | 175gr | Sierra MatchKing 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.