Load Specifications
Load data in caliber 7 mm Rem. Mag. with .284 | 145gr | Speer Boat-Tail bullet and 77 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 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>> | 98% | 56,333 psi | 90% | 2986 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 54,346 psi | 87% | 2976 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 54,955 psi | 88% | 3074 fps | 96.5% |
| ADI AR 2208 | <<locked>> | 84% | 56,260 psi | 90% | 2946 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,288 psi | 89% | 3025 fps | 98.6% |
| ADI AR 2213 | <<locked>> | 96% | 53,040 psi | 85% | 3018 fps | 97.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,175 psi | 63% | 2782 fps | 96.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 53,954 psi | 87% | 2917 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,187 psi | 88% | 3035 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 52,620 psi | 84% | 2995 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,665 psi | 88% | 3012 fps | 98.5% |
| Alliant Reloder-22 | <<locked>> | 98% | 56,246 psi | 90% | 3077 fps | 98.9% |
| Alliant Reloder-23 | <<locked>> | 98% | 53,243 psi | 85% | 2999 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,371 psi | 79% | 2992 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,548 psi | 86% | 3087 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,114 psi | 88% | 3058 fps | 98.6% |
| Bofors RP3 | <<locked>> | 82% | 54,940 psi | 88% | 2936 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 56,246 psi | 90% | 3077 fps | 98.9% |
| Bofors RP7 | <<locked>> | 86% | 53,969 psi | 87% | 2923 fps | 99% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,675 psi | 78% | 2930 fps | 97% |
| Hodgdon H380 | <<locked>> | 82% | 55,027 psi | 88% | 2953 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 56,246 psi | 90% | 3028 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 86% | 55,709 psi | 89% | 2986 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 94% | 53,098 psi | 85% | 2959 fps | 96.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 55,680 psi | 89% | 3002 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 55,463 psi | 89% | 2956 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,240 psi | 77% | 3035 fps | 98.3% |
| Hodgdon Superformance | <<locked>> | 86% | 52,837 psi | 85% | 3002 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,811 psi | 59% | 1870 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,854 psi | 90% | 2930 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,317 psi | 89% | 2959 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,521 psi | 89% | 2949 fps | 99.4% |
| IMR 4831 | <<locked>> | 90% | 54,752 psi | 88% | 2966 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,534 psi | 87% | 2949 fps | 96.9% |
| IMR 7828 SSC | <<locked>> | 98% | 54,128 psi | 87% | 3051 fps | 97.5% |
| Lovex S062 | <<locked>> | 82% | 56,144 psi | 90% | 2920 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 55,970 psi | 90% | 2949 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 54,070 psi | 87% | 2940 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,169 psi | 80% | 2887 fps | 99.5% |
| Norma 204 | <<locked>> | 90% | 56,246 psi | 90% | 3015 fps | 98.6% |
| Norma MRP | <<locked>> | 96% | 56,072 psi | 90% | 3104 fps | 99.6% |
| Norma URP | <<locked>> | 88% | 53,127 psi | 85% | 2959 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,752 psi | 88% | 3071 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 90% | 55,463 psi | 89% | 3015 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,823 psi | 85% | 3005 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,449 psi | 60% | 1913 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,665 psi | 88% | 2933 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 55,854 psi | 90% | 3041 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,389 psi | 87% | 2999 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 56,362 psi | 90% | 3084 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,689 psi | 78% | 3035 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 84% | 55,071 psi | 88% | 2933 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 53,171 psi | 85% | 2933 fps | 97.2% |
| Rottweil R 905 | <<locked>> | 94% | 53,998 psi | 87% | 2995 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 86% | 53,969 psi | 87% | 2923 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 88% | 55,970 psi | 90% | 2949 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 56,144 psi | 90% | 2920 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 54,070 psi | 87% | 2940 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 52,953 psi | 85% | 2936 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,317 psi | 89% | 2808 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,492 psi | 89% | 2900 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 53,548 psi | 86% | 2992 fps | 98.4% |
| Somchem S355 | <<locked>> | 84% | 54,969 psi | 88% | 2927 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,737 psi | 88% | 2927 fps | 96.8% |
| Somchem S365 | <<locked>> | 90% | 52,895 psi | 85% | 2966 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,578 psi | 88% | 2972 fps | 99.1% |
| Vihtavuori N150 | <<locked>> | 86% | 56,159 psi | 90% | 2900 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,853 psi | 88% | 2953 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,012 psi | 87% | 2946 fps | 98.8% |
| Vihtavuori N550 | <<locked>> | 88% | 54,215 psi | 87% | 2959 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 55,724 psi | 89% | 3028 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 56,072 psi | 90% | 3094 fps | 97.4% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,547 psi | 83% | 2999 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,433 psi | 87% | 2917 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 52,982 psi | 85% | 2972 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,490 psi | 86% | 3130 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,781 psi | 88% | 2969 fps | 98.5% |
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>> | 82% | 32,706 psi | 52% | 2523 fps | 95.2% |
| Accurate 4350 | <<locked>> | 80% | 41,278 psi | 66% | 2740 fps | 99.2% |
| Accurate MAGPRO | <<locked>> | 94% | 51,155 psi | 82% | 3009 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 49,777 psi | 80% | 2838 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 42,380 psi | 68% | 2779 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 92% | 46,195 psi | 74% | 2887 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 98% | 36,738 psi | 59% | 2720 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,589 psi | 81% | 2864 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,856 psi | 64% | 2749 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,658 psi | 73% | 2877 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 42,177 psi | 68% | 2772 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 88% | 40,059 psi | 64% | 2766 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,414 psi | 47% | 2497 fps | 97.6% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,328 psi | 50% | 2566 fps | 95% |
| Alliant Reloder-26 | 60.1 gr | 80% | 31,676 psi | 51% | 2615 fps | 96.2% |
| Bofors RP15 | <<locked>> | 92% | 42,279 psi | 68% | 2815 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 51,488 psi | 83% | 2884 fps | 100% |
| Bofors RP5 | <<locked>> | 88% | 40,059 psi | 64% | 2766 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 44,744 psi | 72% | 2753 fps | 97.4% |
| Hodgdon H1000 | <<locked>> | 96% | 42,511 psi | 68% | 2799 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 51,590 psi | 83% | 2897 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 43,134 psi | 69% | 2789 fps | 97.6% |
| Hodgdon H4350 | <<locked>> | 80% | 46,006 psi | 74% | 2812 fps | 97% |
| Hodgdon H4831 | <<locked>> | 92% | 49,661 psi | 80% | 2900 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 92% | 48,472 psi | 78% | 2877 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,420 psi | 60% | 2638 fps | 99.6% |
| Hodgdon Retumbo | <<locked>> | 94% | 39,653 psi | 64% | 2835 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 42,163 psi | 68% | 2802 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,572 psi | 44% | 1673 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,388 psi | 84% | 2874 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,277 psi | 65% | 2674 fps | 96.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,180 psi | 74% | 2782 fps | 98.1% |
| IMR 4831 | <<locked>> | 80% | 39,581 psi | 63% | 2690 fps | 98.9% |
| IMR 4955 Enduron | <<locked>> | 90% | 48,051 psi | 77% | 2835 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 94% | 47,311 psi | 76% | 2923 fps | 95.8% |
| Lovex S062 | <<locked>> | 80% | 52,678 psi | 84% | 2871 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,671 psi | 70% | 2730 fps | 98.7% |
| Lovex S070 | <<locked>> | 80% | 41,901 psi | 67% | 2713 fps | 97.5% |
| Lovex S071 | <<locked>> | 88% | 34,171 psi | 55% | 2559 fps | 95.8% |
| Norma 204 | <<locked>> | 82% | 42,815 psi | 69% | 2766 fps | 95.6% |
| Norma MRP | 61.3 gr | 84% | 36,651 psi | 59% | 2717 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 40,756 psi | 65% | 2730 fps | 99% |
| Ramshot Grand | <<locked>> | 92% | 44,179 psi | 71% | 2871 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 39,755 psi | 64% | 2723 fps | 97.5% |
| Ramshot Magnum | <<locked>> | 92% | 39,334 psi | 63% | 2743 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,007 psi | 45% | 1709 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,358 psi | 82% | 2877 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,486 psi | 78% | 2930 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,133 psi | 66% | 2759 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,697 psi | 64% | 2769 fps | 98.6% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 36,477 psi | 58% | 2746 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 80% | 48,283 psi | 77% | 2822 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 46,920 psi | 75% | 2822 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 86% | 41,495 psi | 67% | 2759 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 44,744 psi | 72% | 2753 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,671 psi | 70% | 2730 fps | 98.7% |
| Shooters World Precision | <<locked>> | 80% | 52,678 psi | 84% | 2871 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,901 psi | 67% | 2713 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,661 psi | 80% | 2884 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,979 psi | 79% | 2717 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,830 psi | 69% | 2674 fps | 97.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 41,133 psi | 66% | 2753 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 48,356 psi | 78% | 2822 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 48,138 psi | 77% | 2812 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 37,434 psi | 60% | 2687 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 36,941 psi | 59% | 2625 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 46,209 psi | 74% | 2746 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,163 psi | 68% | 2730 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 88% | 38,812 psi | 62% | 2661 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 41,771 psi | 67% | 2733 fps | 99% |
| Vihtavuori N555 | <<locked>> | 80% | 32,808 psi | 53% | 2575 fps | 97.6% |
| Vihtavuori N560 | 67.1 gr | 92% | 48,617 psi | 78% | 2959 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 98% | 48,225 psi | 77% | 2936 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,278 psi | 66% | 2694 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,352 psi | 70% | 2792 fps | 97.6% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,136 psi | 42% | 2477 fps | 96.8% |
| Winchester Supreme 780 | <<locked>> | 88% | 41,307 psi | 66% | 2720 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 83 powders for 7 mm Rem. Mag. loaded with the .284 | 145gr | Speer Boat-Tail. Winchester StaBALL HD delivers the highest muzzle velocity at 3,130 fps; across all powders the maximum-charge window runs from 1,870 fps to 3,130 fps. ADI AR 2217 gives the best case fill at 100 %, and 83 of the 83 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 145.0 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. Alliant Reloder-26, Norma MRP, Vihtavuori N560 rank at the top here: for 7 mm Rem. Mag. with the .284 | 145gr | Speer Boat-Tail they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Baschieri & Pellagri 109, Norma 217 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.