Load Specifications
Load data in caliber 7 mm Rem. Mag. with .284 | 151gr | Warner Tool Co. Flat Line bullet and 88 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.
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 2700 | <<locked>> | 86% | 55,999 psi | 90% | 2828 fps | 99.1% |
| Accurate 3100 | <<locked>> | 98% | 53,011 psi | 85% | 2867 fps | 99.7% |
| Accurate 4064 | <<locked>> | 82% | 54,128 psi | 87% | 2802 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 54,955 psi | 88% | 2913 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 55,985 psi | 90% | 3012 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 84% | 54,114 psi | 87% | 2838 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 55,927 psi | 90% | 2963 fps | 98.6% |
| ADI AR 2213 | <<locked>> | 98% | 53,548 psi | 86% | 2956 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 54,998 psi | 88% | 2861 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 55,129 psi | 88% | 2884 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,782 psi | 89% | 2972 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 53,316 psi | 85% | 2940 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 55,230 psi | 89% | 2946 fps | 98.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 56,391 psi | 90% | 3012 fps | 98.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 53,388 psi | 86% | 2936 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,398 psi | 74% | 2871 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 96% | 53,519 psi | 86% | 3025 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,692 psi | 83% | 2933 fps | 98% |
| Bofors RP3 | <<locked>> | 84% | 55,941 psi | 90% | 2877 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 56,391 psi | 90% | 3012 fps | 98.8% |
| Bofors RP7 | <<locked>> | 88% | 55,100 psi | 88% | 2864 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 84% | 55,970 psi | 90% | 2890 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 54,752 psi | 88% | 2933 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 90% | 55,114 psi | 88% | 2904 fps | 98.7% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 52,866 psi | 85% | 2884 fps | 96.3% |
| Hodgdon H4831 SC | <<locked>> | 98% | 56,217 psi | 90% | 2940 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 55,999 psi | 90% | 2894 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 54,041 psi | 87% | 2877 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,440 psi | 73% | 2907 fps | 97.5% |
| Hodgdon Superformance | <<locked>> | 88% | 53,403 psi | 86% | 2943 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,651 psi | 59% | 1801 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 53,447 psi | 86% | 2825 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 56,434 psi | 90% | 2861 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,071 psi | 88% | 2841 fps | 99.4% |
| IMR 4350 | <<locked>> | 92% | 56,115 psi | 90% | 2897 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 53,301 psi | 85% | 2838 fps | 99.2% |
| IMR 4831 | <<locked>> | 96% | 56,434 psi | 90% | 2923 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 55,288 psi | 89% | 2887 fps | 97% |
| IMR 7828 SSC | <<locked>> | 98% | 55,013 psi | 88% | 2992 fps | 97.5% |
| Lovex S062 | <<locked>> | 82% | 53,679 psi | 86% | 2808 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 53,461 psi | 86% | 2835 fps | 99.8% |
| Lovex S070 | <<locked>> | 90% | 54,795 psi | 88% | 2877 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,210 psi | 76% | 2772 fps | 99.1% |
| Norma 203B | <<locked>> | 82% | 54,476 psi | 87% | 2867 fps | 100% |
| Norma 204 | <<locked>> | 90% | 53,258 psi | 85% | 2894 fps | 98% |
| Norma MRP | <<locked>> | 98% | 56,217 psi | 90% | 3038 fps | 99.6% |
| Norma URP | <<locked>> | 90% | 53,679 psi | 86% | 2900 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 55,100 psi | 88% | 2890 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 54,766 psi | 88% | 2999 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 92% | 56,159 psi | 90% | 2956 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 55,782 psi | 89% | 2982 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,318 psi | 60% | 1841 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 56,057 psi | 90% | 2881 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 52,649 psi | 84% | 2927 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 54,824 psi | 88% | 2936 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 53,142 psi | 85% | 2963 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,353 psi | 73% | 2897 fps | 98.5% |
| Rottweil R 902 | <<locked>> | 82% | 55,738 psi | 89% | 2825 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 56,072 psi | 90% | 2874 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 54,056 psi | 87% | 2877 fps | 97.3% |
| Rottweil R 905 | <<locked>> | 96% | 54,737 psi | 88% | 2936 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 88% | 55,100 psi | 88% | 2864 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 53,461 psi | 86% | 2835 fps | 99.8% |
| Shooters World Precision | <<locked>> | 82% | 53,679 psi | 86% | 2808 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 54,795 psi | 88% | 2877 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 53,809 psi | 86% | 2877 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 53,243 psi | 85% | 2707 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 53,040 psi | 85% | 2789 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 54,273 psi | 87% | 2933 fps | 98.5% |
| Somchem S355 | <<locked>> | 86% | 55,927 psi | 90% | 2867 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 55,709 psi | 89% | 2867 fps | 96.8% |
| Somchem S365 | <<locked>> | 92% | 53,171 psi | 85% | 2900 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 55,216 psi | 89% | 2910 fps | 99.1% |
| Unknown powder | <<locked>> | 88% | 54,331 psi | 87% | 2907 fps | 100% |
| Vihtavuori N133 | <<locked>> | 82% | 55,825 psi | 90% | 2730 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 56,101 psi | 90% | 2779 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,405 psi | 89% | 2785 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 54,201 psi | 87% | 2805 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,534 psi | 87% | 2871 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 52,605 psi | 84% | 2854 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 82% | 55,303 psi | 89% | 2815 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 55,085 psi | 88% | 2920 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 56,014 psi | 90% | 2966 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 53,011 psi | 85% | 2976 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 55,361 psi | 89% | 2861 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,752 psi | 88% | 2933 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 48,892 psi | 78% | 3005 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 53,127 psi | 85% | 2871 fps | 98.1% |
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% | 45,934 psi | 74% | 2664 fps | 97.5% |
| Accurate 3100 | <<locked>> | 84% | 33,025 psi | 53% | 2477 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 51,010 psi | 82% | 2759 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,117 psi | 63% | 2631 fps | 98.8% |
| Accurate MAGPRO | <<locked>> | 98% | 52,040 psi | 83% | 2946 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 47,834 psi | 77% | 2733 fps | 100% |
| ADI AR 2209 | <<locked>> | 88% | 42,931 psi | 69% | 2723 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 94% | 46,891 psi | 75% | 2831 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,356 psi | 78% | 2756 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,750 psi | 83% | 2828 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,826 psi | 61% | 2638 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,076 psi | 69% | 2766 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 40,161 psi | 64% | 2664 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 90% | 40,422 psi | 65% | 2713 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,949 psi | 45% | 2398 fps | 97% |
| Alliant Reloder-25 | <<locked>> | 88% | 31,531 psi | 51% | 2513 fps | 95.1% |
| Alliant Reloder-26 | 55.6 gr | 80% | 29,863 psi | 48% | 2507 fps | 95.3% |
| Bofors RP15 | <<locked>> | 94% | 42,598 psi | 68% | 2759 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 48,820 psi | 78% | 2769 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 40,422 psi | 65% | 2713 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 42,830 psi | 69% | 2644 fps | 96.9% |
| Hodgdon H380 | <<locked>> | 80% | 49,182 psi | 79% | 2782 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 44,570 psi | 71% | 2753 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 80% | 40,379 psi | 65% | 2625 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 98% | 49,458 psi | 79% | 2825 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 94% | 49,182 psi | 79% | 2822 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,462 psi | 57% | 2533 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 50,633 psi | 81% | 2825 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 39,900 psi | 64% | 2776 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 39,900 psi | 64% | 2690 fps | 96.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,311 psi | 44% | 1604 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,372 psi | 81% | 2776 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,920 psi | 75% | 2710 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,992 psi | 74% | 2684 fps | 98.1% |
| IMR 4350 | <<locked>> | 80% | 38,508 psi | 62% | 2572 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,338 psi | 71% | 2677 fps | 97.7% |
| IMR 4831 | <<locked>> | 80% | 34,069 psi | 55% | 2503 fps | 97.6% |
| IMR 4955 Enduron | <<locked>> | 92% | 48,733 psi | 78% | 2776 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 94% | 48,066 psi | 77% | 2867 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 50,604 psi | 81% | 2762 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,901 psi | 67% | 2628 fps | 98.4% |
| Lovex S070 | <<locked>> | 80% | 40,030 psi | 64% | 2605 fps | 96.9% |
| Lovex S071 | <<locked>> | 88% | 32,213 psi | 52% | 2457 fps | 95.1% |
| Norma 203B | <<locked>> | 80% | 51,082 psi | 82% | 2815 fps | 100% |
| Norma 204 | <<locked>> | 84% | 43,424 psi | 70% | 2713 fps | 95.8% |
| Norma MRP | 58 gr | 86% | 36,970 psi | 59% | 2664 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 38,725 psi | 62% | 2625 fps | 98.7% |
| Ramshot Big Game | <<locked>> | 80% | 51,634 psi | 83% | 2838 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 43,990 psi | 71% | 2799 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 37,666 psi | 60% | 2612 fps | 96.9% |
| Ramshot Magnum | <<locked>> | 90% | 38,029 psi | 61% | 2648 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,978 psi | 45% | 1647 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,197 psi | 79% | 2769 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,730 psi | 73% | 2818 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,928 psi | 62% | 2651 fps | 98.6% |
| ReloadSwiss RS 70 | 55.1 gr | 80% | 37,652 psi | 60% | 2657 fps | 98% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 36,825 psi | 59% | 2694 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 52,257 psi | 84% | 2772 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,050 psi | 74% | 2717 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 44,715 psi | 72% | 2710 fps | 95% |
| Rottweil R 905 | <<locked>> | 88% | 41,829 psi | 67% | 2703 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 42,830 psi | 69% | 2644 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,901 psi | 67% | 2628 fps | 98.4% |
| Shooters World Precision | <<locked>> | 80% | 50,604 psi | 81% | 2762 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,030 psi | 64% | 2605 fps | 96.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,297 psi | 76% | 2772 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,166 psi | 76% | 2618 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,915 psi | 66% | 2569 fps | 97% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 41,437 psi | 66% | 2697 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 46,383 psi | 74% | 2717 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 48,675 psi | 78% | 2753 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 35,259 psi | 57% | 2582 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 37,391 psi | 60% | 2575 fps | 95.2% |
| Unknown powder | <<locked>> | 80% | 41,727 psi | 67% | 2680 fps | 98.8% |
| Vihtavuori N133 | <<locked>> | 80% | 52,591 psi | 84% | 2687 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 52,823 psi | 85% | 2736 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,214 psi | 84% | 2743 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,798 psi | 64% | 2566 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,901 psi | 67% | 2654 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 90% | 37,956 psi | 61% | 2582 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 51,663 psi | 83% | 2762 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 42,366 psi | 68% | 2697 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 80% | 30,966 psi | 50% | 2474 fps | 97.1% |
| Vihtavuori N560 | <<locked>> | 94% | 46,499 psi | 75% | 2854 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,160 psi | 63% | 2592 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 44,570 psi | 71% | 2753 fps | 97.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,685 psi | 40% | 2369 fps | 95.7% |
| Winchester Supreme 780 | <<locked>> | 88% | 42,844 psi | 69% | 2690 fps | 95.8% |
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 97 powders for 7 mm Rem. Mag. loaded with the .284 | 151gr | Warner Tool Co. Flat Line. Norma MRP delivers the highest muzzle velocity at 3,038 fps; across all powders the maximum-charge window runs from 1,801 fps to 3,038 fps. Accurate MAGPRO gives the best case fill at 100 %, and 97 of the 97 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 151.0 gr projectile in 0.284" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate MAGPRO, ADI AR 2217, ADI AR 2225 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 | 151gr | Warner Tool Co. Flat Line they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Baschieri & Pellagri 109, Bofors RP30 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.