Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 139gr | MEN SF bullet and 50 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ADI AR 2218 and Vihtavuori N570.
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>> | 86% | 56,478 psi | 89% | 2959 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 55,550 psi | 87% | 3058 fps | 99% |
| ADI AR 2209 | <<locked>> | 84% | 57,217 psi | 90% | 3045 fps | 100% |
| ADI AR 2213 | <<locked>> | 86% | 56,173 psi | 88% | 3061 fps | 99.7% |
| ADI AR 2217 | <<locked>> | 94% | 55,564 psi | 87% | 3038 fps | 99.9% |
| ADI AR 2218 | <<locked>> | 98% | 56,652 psi | 89% | 3150 fps | 98.4% |
| ADI AR 2225 | <<locked>> | 96% | 54,940 psi | 86% | 3054 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 57,566 psi | 90% | 3045 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 56,956 psi | 89% | 3038 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 86% | 56,695 psi | 89% | 3058 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 54,824 psi | 86% | 2966 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 55,477 psi | 87% | 3035 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 55,492 psi | 87% | 3045 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 54,462 psi | 85% | 3058 fps | 97.6% |
| Alliant Reloder-50 | <<locked>> | 98% | 54,621 psi | 86% | 3045 fps | 97.2% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 56,753 psi | 89% | 3015 fps | 98.2% |
| Bofors RP15 | <<locked>> | 88% | 56,101 psi | 88% | 3045 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 55,448 psi | 87% | 3048 fps | 99.8% |
| Bofors RP5 | <<locked>> | 86% | 56,695 psi | 89% | 3058 fps | 100% |
| Hodgdon H1000 | <<locked>> | 92% | 57,000 psi | 89% | 3058 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 54,984 psi | 86% | 2992 fps | 99.2% |
| Hodgdon H4831 SC | <<locked>> | 84% | 53,998 psi | 85% | 2976 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 57,363 psi | 90% | 2956 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 54,882 psi | 86% | 3120 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,724 psi | 59% | 2014 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 55,071 psi | 86% | 2969 fps | 99.3% |
| IMR 7828 SSC | <<locked>> | 86% | 54,491 psi | 85% | 3041 fps | 99.6% |
| IMR 8133 Enduron | <<locked>> | 98% | 54,012 psi | 85% | 3031 fps | 99.7% |
| Lovex S071 | <<locked>> | 90% | 54,694 psi | 86% | 2933 fps | 100% |
| Norma 217 | <<locked>> | 98% | 55,332 psi | 87% | 3054 fps | 100% |
| Norma MRP | <<locked>> | 84% | 56,927 psi | 89% | 3071 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 55,869 psi | 88% | 3061 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 88% | 54,795 psi | 86% | 2989 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,682 psi | 61% | 2060 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 56,217 psi | 88% | 3104 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 55,550 psi | 87% | 3064 fps | 99.3% |
| Rottweil R 904 | <<locked>> | 84% | 57,508 psi | 90% | 3015 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 84% | 56,768 psi | 89% | 3031 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 56,391 psi | 88% | 3025 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 55,521 psi | 87% | 2946 fps | 99.3% |
| Somchem S385 | <<locked>> | 84% | 57,174 psi | 90% | 2995 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 57,261 psi | 90% | 2979 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 56,840 psi | 89% | 2995 fps | 96.6% |
| Vihtavuori N555 | <<locked>> | 84% | 56,463 psi | 88% | 2995 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 56,246 psi | 88% | 3071 fps | 99.5% |
| Vihtavuori N565 | <<locked>> | 88% | 53,824 psi | 84% | 3002 fps | 99.3% |
| Vihtavuori N568 | <<locked>> | 92% | 55,695 psi | 87% | 3068 fps | 98.9% |
| Vihtavuori N570 | <<locked>> | 94% | 57,145 psi | 90% | 3130 fps | 97.8% |
| Winchester StaBALL HD | <<locked>> | 86% | 55,564 psi | 87% | 3051 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 57,159 psi | 90% | 2992 fps | 100% |
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% | 46,021 psi | 72% | 2795 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 48,124 psi | 75% | 2927 fps | 97.7% |
| ADI AR 2209 | <<locked>> | 80% | 49,893 psi | 78% | 2927 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 80% | 45,310 psi | 71% | 2871 fps | 98% |
| ADI AR 2217 | <<locked>> | 82% | 36,143 psi | 57% | 2657 fps | 95.5% |
| ADI AR 2218 | 95.7 gr | 94% | 48,544 psi | 76% | 2995 fps | 96.3% |
| ADI AR 2225 | <<locked>> | 80% | 31,125 psi | 49% | 2562 fps | 96.4% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 50,372 psi | 79% | 2930 fps | 99.5% |
| Alliant Reloder-19 | <<locked>> | 80% | 49,893 psi | 78% | 2923 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 80% | 46,093 psi | 72% | 2874 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 44,744 psi | 70% | 2808 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 38,870 psi | 61% | 2746 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 51,532 psi | 81% | 2986 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 46,557 psi | 73% | 2913 fps | 95.5% |
| Alliant Reloder-50 | <<locked>> | 94% | 46,891 psi | 73% | 2900 fps | 95% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 46,354 psi | 73% | 2835 fps | 95.8% |
| Bofors RP15 | <<locked>> | 80% | 42,757 psi | 67% | 2805 fps | 98.3% |
| Bofors RP30 | <<locked>> | 80% | 36,463 psi | 57% | 2674 fps | 95.7% |
| Bofors RP5 | <<locked>> | 80% | 46,093 psi | 72% | 2874 fps | 99.1% |
| Hodgdon H1000 | <<locked>> | 80% | 36,709 psi | 58% | 2674 fps | 96.4% |
| Hodgdon H4831 | <<locked>> | 80% | 47,790 psi | 75% | 2867 fps | 98% |
| Hodgdon H4831 SC | <<locked>> | 80% | 46,934 psi | 74% | 2851 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 53,795 psi | 84% | 2907 fps | 100% |
| Hodgdon Retumbo | 76.9 gr | 80% | 38,043 psi | 60% | 2789 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,369 psi | 44% | 1814 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 48,370 psi | 76% | 2854 fps | 98.3% |
| IMR 7828 SSC | <<locked>> | 80% | 44,019 psi | 69% | 2851 fps | 97.7% |
| IMR 8133 Enduron | <<locked>> | 86% | 35,433 psi | 56% | 2661 fps | 95% |
| Lovex S071 | <<locked>> | 80% | 39,479 psi | 62% | 2667 fps | 99.3% |
| Norma 217 | <<locked>> | 82% | 31,024 psi | 49% | 2562 fps | 95.4% |
| Norma MRP | <<locked>> | 80% | 49,255 psi | 77% | 2949 fps | 99.9% |
| Ramshot Grand | <<locked>> | 80% | 44,454 psi | 70% | 2864 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 80% | 40,234 psi | 63% | 2733 fps | 98.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,124 psi | 46% | 1857 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 37,768 psi | 59% | 2762 fps | 98.9% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 40,640 psi | 64% | 2785 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 50,575 psi | 79% | 2904 fps | 99% |
| Rottweil R 905 | <<locked>> | 80% | 49,545 psi | 78% | 2910 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 49,211 psi | 77% | 2910 fps | 99.5% |
| Somchem S361 | <<locked>> | 80% | 51,764 psi | 81% | 2884 fps | 98.8% |
| Somchem S385 | <<locked>> | 80% | 49,966 psi | 78% | 2884 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 80% | 43,787 psi | 69% | 2759 fps | 99% |
| Vihtavuori N170 | <<locked>> | 90% | 53,214 psi | 83% | 2936 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 80% | 49,530 psi | 78% | 2890 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 48,747 psi | 76% | 2943 fps | 98.3% |
| Vihtavuori N565 | <<locked>> | 80% | 40,582 psi | 64% | 2749 fps | 96.4% |
| Vihtavuori N568 | <<locked>> | 84% | 41,539 psi | 65% | 2802 fps | 95.4% |
| Vihtavuori N570 | 89.8 gr | 90% | 49,458 psi | 78% | 2995 fps | 95.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 43,845 psi | 69% | 2871 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 46,209 psi | 72% | 2815 fps | 99.1% |
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 50 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 139gr | MEN SF. ADI AR 2218 delivers the highest muzzle velocity at 3,150 fps; across all powders the maximum-charge window runs from 2,014 fps to 3,150 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 50 of the 50 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 139.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14 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. Hodgdon Retumbo, ADI AR 2218, Vihtavuori N570 rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 139gr | MEN SF they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.