Load Specifications
Load data in caliber 7 mm Rem. Mag. with .284 | 183gr | Sierra MatchKing bullet and 74 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Vihtavuori N560 and Norma MRP.
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% | 54,114 psi | 87% | 2635 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 55,593 psi | 89% | 2661 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 56,144 psi | 90% | 2779 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 92% | 56,260 psi | 90% | 2720 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 94% | 53,824 psi | 86% | 2720 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,269 psi | 77% | 2628 fps | 98.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,859 psi | 69% | 2595 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 88% | 56,420 psi | 90% | 2710 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 53,751 psi | 86% | 2674 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 55,724 psi | 89% | 2707 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 94% | 53,809 psi | 86% | 2720 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 96% | 54,926 psi | 88% | 2690 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 54,027 psi | 87% | 2746 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 55,288 psi | 89% | 2776 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 55,622 psi | 89% | 2687 fps | 96.8% |
| Bofors RP15 | <<locked>> | 98% | 56,318 psi | 90% | 2756 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,198 psi | 80% | 2697 fps | 98.9% |
| Bofors RP5 | <<locked>> | 94% | 53,809 psi | 86% | 2720 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 54,418 psi | 87% | 2608 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,156 psi | 85% | 2710 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 84% | 53,577 psi | 86% | 2661 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 56,318 psi | 90% | 2674 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 92% | 53,824 psi | 86% | 2664 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 56,420 psi | 90% | 2700 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 53,098 psi | 85% | 2592 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 52,997 psi | 85% | 2815 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 53,650 psi | 86% | 2697 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,231 psi | 60% | 1640 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,086 psi | 90% | 2651 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 84% | 55,999 psi | 90% | 2631 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 55,869 psi | 90% | 2651 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,143 psi | 88% | 2651 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 96% | 55,390 psi | 89% | 2756 fps | 99.2% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 38,508 psi | 62% | 2503 fps | 96% |
| Lovex S065 | <<locked>> | 84% | 53,301 psi | 85% | 2585 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 54,708 psi | 88% | 2628 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 54,969 psi | 88% | 2648 fps | 100% |
| Norma 204 | <<locked>> | 86% | 53,345 psi | 86% | 2651 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 38,479 psi | 62% | 2526 fps | 98.3% |
| Norma MRP | <<locked>> | 92% | 53,447 psi | 86% | 2736 fps | 100% |
| Norma URP | <<locked>> | 86% | 54,041 psi | 87% | 2644 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 55,912 psi | 90% | 2772 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 88% | 56,420 psi | 90% | 2703 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 54,027 psi | 87% | 2710 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,029 psi | 61% | 1680 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 55,463 psi | 89% | 2684 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 53,505 psi | 86% | 2707 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 53,490 psi | 86% | 2815 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 48,240 psi | 77% | 2703 fps | 97.4% |
| Rottweil R 903 | <<locked>> | 82% | 55,869 psi | 90% | 2608 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 53,940 psi | 86% | 2638 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 92% | 55,071 psi | 88% | 2694 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 84% | 54,418 psi | 87% | 2608 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 84% | 53,301 psi | 85% | 2585 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 54,708 psi | 88% | 2628 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,622 psi | 89% | 2484 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 55,767 psi | 89% | 2589 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 54,636 psi | 88% | 2690 fps | 99.7% |
| Somchem S355 | <<locked>> | 82% | 55,419 psi | 89% | 2598 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 55,187 psi | 88% | 2631 fps | 98.6% |
| Somchem S365 | <<locked>> | 88% | 54,433 psi | 87% | 2648 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 55,622 psi | 89% | 2671 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 53,214 psi | 85% | 2530 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 55,825 psi | 90% | 2638 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 55,042 psi | 88% | 2651 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 86% | 54,969 psi | 88% | 2644 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 53,925 psi | 86% | 2671 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 53,359 psi | 86% | 2733 fps | 98.6% |
| Vihtavuori N565 | <<locked>> | 98% | 53,171 psi | 85% | 2717 fps | 98.8% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 49,719 psi | 80% | 2713 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,027 psi | 88% | 2598 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 53,838 psi | 86% | 2664 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 56,101 psi | 90% | 2818 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 55,492 psi | 89% | 2667 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% | 33,895 psi | 54% | 2283 fps | 97.9% |
| Accurate 4350 | <<locked>> | 80% | 45,440 psi | 73% | 2510 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 42,453 psi | 68% | 2546 fps | 95.6% |
| ADI AR 2209 | <<locked>> | 80% | 37,855 psi | 61% | 2395 fps | 96.6% |
| ADI AR 2213 | <<locked>> | 84% | 38,580 psi | 62% | 2441 fps | 95.4% |
| ADI AR 2217 | <<locked>> | 92% | 37,173 psi | 60% | 2408 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 90% | 31,154 psi | 50% | 2316 fps | 95.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,569 psi | 70% | 2516 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,198 psi | 80% | 2625 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,913 psi | 61% | 2395 fps | 96.7% |
| Alliant Reloder-22 | <<locked>> | 80% | 33,663 psi | 54% | 2339 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,532 psi | 52% | 2310 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,326 psi | 45% | 2224 fps | 96.5% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,360 psi | 57% | 2438 fps | 99.4% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 49,385 psi | 79% | 2582 fps | 95.3% |
| Bofors RP15 | <<locked>> | 82% | 33,591 psi | 54% | 2336 fps | 95% |
| Bofors RP30 | <<locked>> | 90% | 35,795 psi | 57% | 2421 fps | 95.2% |
| Bofors RP5 | <<locked>> | 80% | 33,663 psi | 54% | 2339 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 48,254 psi | 77% | 2513 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 88% | 35,476 psi | 57% | 2372 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 80% | 46,949 psi | 75% | 2556 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 80% | 49,472 psi | 79% | 2566 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 84% | 41,089 psi | 66% | 2444 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 84% | 40,466 psi | 65% | 2434 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,002 psi | 66% | 2408 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 33,591 psi | 54% | 2408 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 46,369 psi | 74% | 2582 fps | 99.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,847 psi | 45% | 1463 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,584 psi | 70% | 2451 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,516 psi | 79% | 2536 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 43,323 psi | 69% | 2464 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 40,393 psi | 65% | 2395 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 84% | 37,188 psi | 60% | 2421 fps | 95% |
| IMR 8133 Enduron | <<locked>> | 98% | 35,998 psi | 58% | 2444 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 47,108 psi | 76% | 2490 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 45,339 psi | 73% | 2480 fps | 99.5% |
| Lovex S071 | <<locked>> | 80% | 29,182 psi | 47% | 2169 fps | 96.2% |
| Norma 204 | <<locked>> | 80% | 43,439 psi | 70% | 2487 fps | 97.9% |
| Norma 217 | <<locked>> | 94% | 31,734 psi | 51% | 2362 fps | 95.7% |
| Norma MRP | 52.9 gr | 80% | 35,201 psi | 56% | 2402 fps | 97.4% |
| Norma URP | <<locked>> | 80% | 44,454 psi | 71% | 2497 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 36,651 psi | 59% | 2425 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 43,250 psi | 69% | 2497 fps | 99.6% |
| Ramshot Magnum | <<locked>> | 84% | 32,634 psi | 52% | 2316 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,427 psi | 46% | 1496 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,179 psi | 72% | 2530 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,424 psi | 70% | 2549 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 30,458 psi | 49% | 2326 fps | 95.3% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 41,727 psi | 67% | 2582 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 52,286 psi | 84% | 2559 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 39,320 psi | 63% | 2379 fps | 95.9% |
| Rottweil R 905 | <<locked>> | 80% | 37,188 psi | 60% | 2379 fps | 96.6% |
| Rottweil R 907 | <<locked>> | 80% | 48,254 psi | 77% | 2513 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,108 psi | 76% | 2490 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 45,339 psi | 73% | 2480 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,359 psi | 84% | 2441 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,050 psi | 74% | 2441 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 36,854 psi | 59% | 2375 fps | 96.5% |
| Somchem S355 | <<locked>> | 80% | 52,228 psi | 84% | 2556 fps | 100% |
| Somchem S361 | <<locked>> | 80% | 39,842 psi | 64% | 2369 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 41,481 psi | 67% | 2457 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,710 psi | 60% | 2365 fps | 97.6% |
| Vihtavuori N150 | <<locked>> | 80% | 49,850 psi | 80% | 2484 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,992 psi | 74% | 2493 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 32,706 psi | 52% | 2251 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 45,339 psi | 73% | 2497 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 36,492 psi | 59% | 2379 fps | 99.8% |
| Vihtavuori N560 | 55.5 gr | 84% | 40,567 psi | 65% | 2503 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 88% | 38,000 psi | 61% | 2444 fps | 95.1% |
| Vihtavuori N568 | <<locked>> | 96% | 43,178 psi | 69% | 2592 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,788 psi | 72% | 2454 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,210 psi | 76% | 2559 fps | 99.6% |
| Winchester StaBALL HD | 52.3 gr | 80% | 28,761 psi | 46% | 2326 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,345 psi | 55% | 2293 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 78 powders for 7 mm Rem. Mag. loaded with the .284 | 183gr | Sierra MatchKing. Winchester StaBALL HD delivers the highest muzzle velocity at 2,818 fps; across all powders the maximum-charge window runs from 1,640 fps to 2,818 fps. ADI AR 2217 gives the best case fill at 100 %, and 78 of the 78 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 183.0 gr projectile in 0.284" calls for a 1:8.5 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, Vihtavuori N560, Norma MRP rank at the top here: for 7 mm Rem. Mag. with the .284 | 183gr | Sierra MatchKing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-33, IMR 7977 Enduron, Vihtavuori N170 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.