Load Specifications
Load data in caliber 7 mm Rem. Mag. with .284 | 150gr | Sierra GameKing bullet and 75 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 53,795 psi | 86% | 2904 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 55,622 psi | 89% | 2946 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 56,072 psi | 90% | 3051 fps | 97.1% |
| ADI AR 2208 | <<locked>> | 82% | 53,708 psi | 86% | 2858 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 56,376 psi | 90% | 2999 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 96% | 53,867 psi | 86% | 2992 fps | 97.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,059 psi | 64% | 2769 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,955 psi | 88% | 2884 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 56,188 psi | 90% | 3002 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 53,635 psi | 86% | 2963 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 55,695 psi | 89% | 2982 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 96% | 53,534 psi | 86% | 2989 fps | 98.7% |
| Alliant Reloder-23 | <<locked>> | 98% | 54,447 psi | 87% | 2969 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,314 psi | 81% | 2966 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 54,752 psi | 88% | 3058 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 56,057 psi | 90% | 3028 fps | 98.9% |
| Bofors RP3 | <<locked>> | 82% | 55,811 psi | 89% | 2900 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 46,311 psi | 74% | 2890 fps | 96.6% |
| Bofors RP5 | <<locked>> | 96% | 53,534 psi | 86% | 2989 fps | 98.7% |
| Bofors RP7 | <<locked>> | 86% | 55,027 psi | 88% | 2894 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,734 psi | 80% | 2910 fps | 97.6% |
| Hodgdon H380 | <<locked>> | 82% | 55,854 psi | 90% | 2917 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 53,635 psi | 86% | 2940 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 84% | 53,113 psi | 85% | 2900 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 94% | 53,867 psi | 86% | 2930 fps | 96.9% |
| Hodgdon H4831 SC | <<locked>> | 94% | 52,852 psi | 85% | 2913 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 53,040 psi | 85% | 2871 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,385 psi | 79% | 3018 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 86% | 53,737 psi | 86% | 2972 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,869 psi | 59% | 1837 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 56,217 psi | 90% | 2930 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 84% | 53,113 psi | 85% | 2864 fps | 99.4% |
| IMR 4831 | <<locked>> | 90% | 55,738 psi | 89% | 2936 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 55,477 psi | 89% | 2923 fps | 97.4% |
| IMR 7828 SSC | <<locked>> | 98% | 55,332 psi | 89% | 3028 fps | 98% |
| Lovex S065 | <<locked>> | 86% | 53,548 psi | 86% | 2864 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 54,955 psi | 88% | 2910 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,227 psi | 82% | 2861 fps | 99.7% |
| Norma 204 | <<locked>> | 88% | 53,388 psi | 86% | 2923 fps | 98.4% |
| Norma MRP | <<locked>> | 94% | 53,127 psi | 85% | 3012 fps | 99.5% |
| Norma URP | <<locked>> | 88% | 54,070 psi | 87% | 2930 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 56,072 psi | 90% | 3048 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 88% | 52,736 psi | 85% | 2927 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,012 psi | 87% | 2979 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,521 psi | 60% | 1880 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,724 psi | 89% | 2904 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 53,185 psi | 85% | 2956 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 55,506 psi | 89% | 2969 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 53,606 psi | 86% | 2992 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,734 psi | 80% | 3015 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 84% | 55,883 psi | 90% | 2897 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,085 psi | 87% | 2907 fps | 97.7% |
| Rottweil R 905 | <<locked>> | 94% | 55,100 psi | 88% | 2969 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 86% | 55,027 psi | 88% | 2894 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 53,548 psi | 86% | 2864 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 88% | 54,955 psi | 88% | 2910 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 53,780 psi | 86% | 2904 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 56,217 psi | 90% | 2772 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 56,376 psi | 90% | 2871 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 54,650 psi | 88% | 2966 fps | 98.8% |
| Somchem S355 | <<locked>> | 84% | 55,753 psi | 89% | 2894 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,782 psi | 89% | 2900 fps | 97.3% |
| Somchem S365 | <<locked>> | 90% | 53,983 psi | 87% | 2933 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,666 psi | 89% | 2943 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 84% | 53,403 psi | 86% | 2815 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 56,057 psi | 90% | 2923 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 55,143 psi | 88% | 2923 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 88% | 55,158 psi | 88% | 2927 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 53,272 psi | 85% | 2943 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 53,156 psi | 85% | 2999 fps | 97.1% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,852 psi | 85% | 2976 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,506 psi | 89% | 2884 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 53,911 psi | 86% | 2946 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,984 psi | 88% | 3100 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,709 psi | 89% | 2940 fps | 98.8% |
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% | 31,285 psi | 50% | 2448 fps | 95% |
| Accurate 4350 | <<locked>> | 80% | 42,206 psi | 68% | 2717 fps | 99.5% |
| Accurate MAGPRO | <<locked>> | 92% | 48,530 psi | 78% | 2917 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 50,589 psi | 81% | 2808 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 40,524 psi | 65% | 2697 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 90% | 44,063 psi | 71% | 2802 fps | 95% |
| ADI AR 2225 | <<locked>> | 96% | 35,230 psi | 56% | 2644 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,503 psi | 83% | 2831 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,669 psi | 65% | 2726 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,543 psi | 75% | 2848 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 40,393 psi | 65% | 2694 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 88% | 40,915 psi | 66% | 2746 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,095 psi | 48% | 2480 fps | 98.2% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,894 psi | 51% | 2546 fps | 95.8% |
| Alliant Reloder-26 | 59.7 gr | 80% | 32,547 psi | 52% | 2602 fps | 97% |
| Bofors RP15 | <<locked>> | 90% | 40,567 psi | 65% | 2736 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 52,214 psi | 84% | 2848 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 43,236 psi | 69% | 2825 fps | 95.7% |
| Bofors RP5 | <<locked>> | 88% | 40,915 psi | 66% | 2746 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 45,542 psi | 73% | 2726 fps | 97.9% |
| Hodgdon H1000 | <<locked>> | 96% | 43,410 psi | 70% | 2785 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 52,359 psi | 84% | 2861 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 43,859 psi | 70% | 2759 fps | 98% |
| Hodgdon H4350 | <<locked>> | 80% | 46,673 psi | 75% | 2782 fps | 97.5% |
| Hodgdon H4831 | <<locked>> | 90% | 47,123 psi | 76% | 2812 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 90% | 46,209 psi | 74% | 2792 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,232 psi | 61% | 2612 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 92% | 37,956 psi | 61% | 2749 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 43,033 psi | 69% | 2779 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,543 psi | 44% | 1640 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,017 psi | 66% | 2651 fps | 96.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,775 psi | 75% | 2749 fps | 98.5% |
| IMR 4831 | <<locked>> | 80% | 40,248 psi | 65% | 2664 fps | 99.3% |
| IMR 4955 Enduron | <<locked>> | 88% | 45,832 psi | 73% | 2749 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 92% | 45,150 psi | 72% | 2838 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 44,425 psi | 71% | 2703 fps | 99.1% |
| Lovex S070 | <<locked>> | 80% | 42,728 psi | 69% | 2687 fps | 97.9% |
| Lovex S071 | <<locked>> | 86% | 32,706 psi | 52% | 2487 fps | 95.6% |
| Norma 204 | <<locked>> | 80% | 40,712 psi | 65% | 2680 fps | 95.3% |
| Norma MRP | 59.4 gr | 82% | 34,969 psi | 56% | 2631 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 41,640 psi | 67% | 2707 fps | 99.3% |
| Ramshot Grand | <<locked>> | 92% | 44,947 psi | 72% | 2848 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 40,437 psi | 65% | 2697 fps | 98% |
| Ramshot Magnum | <<locked>> | 90% | 37,391 psi | 60% | 2657 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,195 psi | 45% | 1683 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,069 psi | 83% | 2844 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,385 psi | 79% | 2897 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,119 psi | 68% | 2736 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,393 psi | 65% | 2746 fps | 99% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 37,304 psi | 60% | 2730 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 80% | 49,226 psi | 79% | 2795 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 44,672 psi | 72% | 2736 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 84% | 39,494 psi | 63% | 2674 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 45,542 psi | 73% | 2726 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,425 psi | 71% | 2703 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 80% | 42,728 psi | 69% | 2687 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,415 psi | 81% | 2848 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,777 psi | 80% | 2684 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,439 psi | 70% | 2648 fps | 98% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 39,131 psi | 63% | 2667 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 49,226 psi | 79% | 2789 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 48,791 psi | 78% | 2782 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 38,348 psi | 61% | 2664 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 37,623 psi | 60% | 2602 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 80% | 47,050 psi | 75% | 2713 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,018 psi | 69% | 2703 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 86% | 37,159 psi | 60% | 2585 fps | 95.1% |
| Vihtavuori N550 | <<locked>> | 80% | 42,438 psi | 68% | 2703 fps | 99.3% |
| Vihtavuori N555 | <<locked>> | 80% | 33,591 psi | 54% | 2556 fps | 98.2% |
| Vihtavuori N560 | 65.2 gr | 90% | 46,499 psi | 75% | 2877 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 96% | 45,992 psi | 74% | 2851 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,003 psi | 67% | 2667 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,106 psi | 71% | 2766 fps | 98.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,643 psi | 43% | 2464 fps | 97.7% |
| Winchester Supreme 780 | <<locked>> | 86% | 39,363 psi | 63% | 2641 fps | 95.1% |
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 81 powders for 7 mm Rem. Mag. loaded with the .284 | 150gr | Sierra GameKing. Winchester StaBALL HD delivers the highest muzzle velocity at 3,100 fps; across all powders the maximum-charge window runs from 1,837 fps to 3,100 fps. ADI AR 2217 gives the best case fill at 100 %, and 81 of the 81 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 150.0 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, 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. Norma MRP, Vihtavuori N560, Alliant Reloder-26 rank at the top here: for 7 mm Rem. Mag. with the .284 | 150gr | Sierra GameKing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, IMR 8133 Enduron, Norma 217, ReloadSwiss RS 80 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.