Load Specifications
Load data in caliber 7 mm Rem. Mag. with .284 | 140gr | Sierra GameKing bullet and 83 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and ReloadSwiss RS 70.
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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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 2700 | <<locked>> | 82% | 54,201 psi | 87% | 2920 fps | 98.5% |
| Accurate 3100 | <<locked>> | 98% | 52,576 psi | 84% | 2969 fps | 99.4% |
| Accurate 4064 | <<locked>> | 82% | 53,577 psi | 86% | 2910 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 54,549 psi | 87% | 3022 fps | 100% |
| ADI AR 2208 | <<locked>> | 84% | 53,461 psi | 86% | 2940 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 55,448 psi | 89% | 3064 fps | 98.1% |
| ADI AR 2213 | <<locked>> | 98% | 53,069 psi | 85% | 3051 fps | 96.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 54,505 psi | 87% | 2969 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 54,708 psi | 88% | 2992 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,172 psi | 88% | 3077 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 52,692 psi | 84% | 3041 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 54,708 psi | 88% | 3048 fps | 98% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 55,999 psi | 90% | 3114 fps | 98.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,939 psi | 85% | 3041 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,948 psi | 74% | 2963 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 96% | 52,881 psi | 85% | 3123 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,198 psi | 82% | 3028 fps | 97.4% |
| Bofors RP3 | <<locked>> | 84% | 55,216 psi | 89% | 2982 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 55,999 psi | 90% | 3114 fps | 98.4% |
| Bofors RP7 | <<locked>> | 88% | 54,592 psi | 88% | 2966 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 84% | 55,492 psi | 89% | 2999 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 53,055 psi | 85% | 3015 fps | 99% |
| Hodgdon H4350 | <<locked>> | 88% | 56,275 psi | 90% | 3031 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 98% | 55,709 psi | 89% | 3038 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 55,579 psi | 89% | 2999 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,918 psi | 72% | 2995 fps | 96.6% |
| Hodgdon Superformance | <<locked>> | 88% | 53,026 psi | 85% | 3048 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,434 psi | 58% | 1883 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 56,318 psi | 90% | 2976 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,448 psi | 89% | 2959 fps | 99.2% |
| IMR 4350 | <<locked>> | 92% | 55,724 psi | 89% | 3002 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 88% | 56,202 psi | 90% | 2995 fps | 99.2% |
| IMR 4831 | <<locked>> | 92% | 54,882 psi | 88% | 3009 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 56,130 psi | 90% | 3018 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 54,868 psi | 88% | 2989 fps | 96.4% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,114 psi | 87% | 3084 fps | 96.8% |
| Lovex S062 | <<locked>> | 82% | 53,200 psi | 85% | 2917 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 52,982 psi | 85% | 2936 fps | 99.6% |
| Lovex S070 | <<locked>> | 90% | 54,346 psi | 87% | 2982 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,818 psi | 75% | 2867 fps | 98.7% |
| Norma 203B | <<locked>> | 82% | 53,998 psi | 87% | 2976 fps | 100% |
| Norma 204 | <<locked>> | 90% | 52,997 psi | 85% | 2995 fps | 97.5% |
| Norma MRP | <<locked>> | 98% | 55,680 psi | 89% | 3140 fps | 99.3% |
| Norma URP | <<locked>> | 90% | 53,185 psi | 85% | 3002 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 54,708 psi | 88% | 2999 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,723 psi | 88% | 3104 fps | 97.3% |
| Ramshot Hunter | <<locked>> | 92% | 55,695 psi | 89% | 3061 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,921 psi | 78% | 2969 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,260 psi | 60% | 1929 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,477 psi | 89% | 2982 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 55,970 psi | 90% | 3094 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 54,462 psi | 87% | 3041 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 52,910 psi | 85% | 3071 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,020 psi | 72% | 2989 fps | 97.8% |
| Rottweil R 902 | <<locked>> | 82% | 55,245 psi | 89% | 2933 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 55,347 psi | 89% | 2979 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 53,621 psi | 86% | 2976 fps | 96.7% |
| Rottweil R 905 | <<locked>> | 96% | 53,969 psi | 87% | 3031 fps | 98% |
| Rottweil R 907 | <<locked>> | 88% | 54,592 psi | 88% | 2966 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 88% | 52,982 psi | 85% | 2936 fps | 99.6% |
| Shooters World Precision | <<locked>> | 82% | 53,200 psi | 85% | 2917 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 54,346 psi | 87% | 2982 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 53,490 psi | 86% | 2989 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 56,159 psi | 90% | 2861 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,043 psi | 90% | 2943 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 53,490 psi | 86% | 3028 fps | 98% |
| Somchem S355 | <<locked>> | 86% | 55,303 psi | 89% | 2976 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 55,201 psi | 89% | 2966 fps | 96.2% |
| Somchem S365 | <<locked>> | 94% | 56,260 psi | 90% | 3061 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 54,650 psi | 88% | 3012 fps | 98.8% |
| Vihtavuori N135 | <<locked>> | 82% | 55,477 psi | 89% | 2887 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,883 psi | 90% | 2907 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 53,069 psi | 85% | 2897 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 55,274 psi | 89% | 2999 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,215 psi | 87% | 2989 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 82% | 54,070 psi | 87% | 2900 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 54,404 psi | 87% | 3002 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 55,434 psi | 89% | 3068 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 55,869 psi | 90% | 3127 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 54,810 psi | 88% | 2959 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 53,055 psi | 85% | 3015 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 48,399 psi | 78% | 3107 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 54,839 psi | 88% | 3005 fps | 98% |
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 2700 | <<locked>> | 80% | 50,778 psi | 81% | 2864 fps | 97.9% |
| Accurate 3100 | <<locked>> | 86% | 34,983 psi | 56% | 2618 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 50,343 psi | 81% | 2861 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,624 psi | 62% | 2723 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 80% | 47,311 psi | 76% | 2835 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 88% | 42,612 psi | 68% | 2818 fps | 95% |
| ADI AR 2213 | <<locked>> | 96% | 49,545 psi | 79% | 2986 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,964 psi | 77% | 2858 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,213 psi | 82% | 2933 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,492 psi | 60% | 2733 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,743 psi | 69% | 2864 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 88% | 42,293 psi | 68% | 2812 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 92% | 42,728 psi | 69% | 2861 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,528 psi | 44% | 2470 fps | 96% |
| Alliant Reloder-25 | <<locked>> | 90% | 33,257 psi | 53% | 2654 fps | 95.2% |
| Alliant Reloder-26 | 59.7 gr | 82% | 31,604 psi | 51% | 2648 fps | 95.4% |
| Bofors RP15 | <<locked>> | 96% | 44,846 psi | 72% | 2907 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 48,472 psi | 78% | 2874 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 42,728 psi | 69% | 2861 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 42,482 psi | 68% | 2736 fps | 96.2% |
| Hodgdon H380 | <<locked>> | 80% | 48,776 psi | 78% | 2884 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 40,509 psi | 65% | 2769 fps | 96.3% |
| Hodgdon H4350 | <<locked>> | 80% | 43,439 psi | 70% | 2792 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 96% | 52,011 psi | 83% | 2972 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,983 psi | 56% | 2618 fps | 98.8% |
| Hodgdon Retumbo | <<locked>> | 98% | 42,177 psi | 68% | 2927 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 39,537 psi | 63% | 2776 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,354 psi | 44% | 1686 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,777 psi | 80% | 2871 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,953 psi | 83% | 2900 fps | 98.7% |
| IMR 4350 | <<locked>> | 82% | 40,727 psi | 65% | 2720 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,976 psi | 71% | 2772 fps | 97.1% |
| IMR 4831 | <<locked>> | 80% | 36,999 psi | 59% | 2667 fps | 97.9% |
| IMR 4895 | <<locked>> | 80% | 52,518 psi | 84% | 2963 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 51,430 psi | 82% | 2930 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 96% | 47,340 psi | 76% | 2956 fps | 95% |
| Lovex S062 | <<locked>> | 80% | 50,009 psi | 80% | 2864 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,379 psi | 66% | 2717 fps | 97.8% |
| Lovex S070 | <<locked>> | 80% | 39,668 psi | 64% | 2697 fps | 96.2% |
| Lovex S071 | <<locked>> | 90% | 33,924 psi | 54% | 2592 fps | 95.1% |
| Norma 203B | <<locked>> | 80% | 50,546 psi | 81% | 2917 fps | 100% |
| Norma 204 | <<locked>> | 84% | 43,163 psi | 69% | 2808 fps | 95% |
| Norma MRP | 62.2 gr | 88% | 39,160 psi | 63% | 2812 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 38,305 psi | 61% | 2713 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 80% | 50,952 psi | 82% | 2940 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 47,398 psi | 76% | 2969 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 37,231 psi | 60% | 2700 fps | 96.1% |
| Ramshot Magnum | <<locked>> | 96% | 42,177 psi | 68% | 2835 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,760 psi | 45% | 1726 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,747 psi | 78% | 2867 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,411 psi | 73% | 2920 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,421 psi | 62% | 2740 fps | 98% |
| ReloadSwiss RS 70 | 57.7 gr | 80% | 37,115 psi | 60% | 2743 fps | 97.3% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 39,073 psi | 63% | 2841 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 51,982 psi | 83% | 2881 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,571 psi | 73% | 2818 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 47,065 psi | 75% | 2854 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 90% | 44,266 psi | 71% | 2854 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 42,482 psi | 68% | 2736 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,379 psi | 66% | 2717 fps | 97.8% |
| Shooters World Precision | <<locked>> | 80% | 50,009 psi | 80% | 2864 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,668 psi | 64% | 2697 fps | 96.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,833 psi | 75% | 2874 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,789 psi | 75% | 2723 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,524 psi | 65% | 2657 fps | 96.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 43,859 psi | 70% | 2848 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 45,788 psi | 73% | 2815 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 51,735 psi | 83% | 2907 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 34,809 psi | 56% | 2671 fps | 99.6% |
| Somchem S385 | <<locked>> | 86% | 39,421 psi | 63% | 2717 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 80% | 52,315 psi | 84% | 2844 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,315 psi | 84% | 2854 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,772 psi | 70% | 2743 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,711 psi | 64% | 2717 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 92% | 41,408 psi | 66% | 2753 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 50,676 psi | 81% | 2848 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,218 psi | 63% | 2717 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 80% | 30,414 psi | 49% | 2549 fps | 96.1% |
| Vihtavuori N560 | <<locked>> | 96% | 52,156 psi | 84% | 3061 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,827 psi | 62% | 2680 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 40,683 psi | 65% | 2772 fps | 96.3% |
| Winchester StaBALL HD | <<locked>> | 82% | 26,063 psi | 42% | 2500 fps | 95.7% |
| Winchester Supreme 780 | <<locked>> | 92% | 44,585 psi | 71% | 2822 fps | 95.7% |
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 91 powders for 7 mm Rem. Mag. loaded with the .284 | 140gr | Sierra GameKing. Norma MRP delivers the highest muzzle velocity at 3,140 fps; across all powders the maximum-charge window runs from 1,883 fps to 3,140 fps. ADI AR 2217 gives the best case fill at 100 %, and 91 of the 91 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 140.0 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-22 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. Alliant Reloder-26, Norma MRP, ReloadSwiss RS 70 rank at the top here: for 7 mm Rem. Mag. with the .284 | 140gr | Sierra GameKing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, ADI AR 2225, Baschieri & Pellagri 109 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.