Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 157gr | CutEdge MTAC bullet and 50 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2218, Vihtavuori N570 and Hodgdon Retumbo.
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>> | 86% | 57,493 psi | 90% | 2844 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 49,705 psi | 78% | 2805 fps | 97% |
| Accurate MAGPRO | <<locked>> | 84% | 56,869 psi | 89% | 2953 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 82% | 54,882 psi | 86% | 2877 fps | 100% |
| ADI AR 2213 | <<locked>> | 86% | 57,522 psi | 90% | 2949 fps | 100% |
| ADI AR 2217 | <<locked>> | 94% | 57,072 psi | 89% | 2930 fps | 100% |
| ADI AR 2218 | <<locked>> | 96% | 53,795 psi | 84% | 2986 fps | 98.7% |
| ADI AR 2225 | <<locked>> | 96% | 56,739 psi | 89% | 2949 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 54,491 psi | 85% | 2871 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 84% | 54,201 psi | 85% | 2887 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 56,217 psi | 88% | 2851 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 57,029 psi | 89% | 2920 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 57,072 psi | 89% | 2930 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 55,753 psi | 87% | 2963 fps | 98.7% |
| Alliant Reloder-50 | <<locked>> | 98% | 55,912 psi | 88% | 2949 fps | 98.3% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 54,273 psi | 85% | 2854 fps | 98.5% |
| Bofors RP15 | <<locked>> | 88% | 57,319 psi | 90% | 2933 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 56,826 psi | 89% | 2940 fps | 100% |
| Bofors RP5 | <<locked>> | 84% | 54,201 psi | 85% | 2887 fps | 100% |
| Hodgdon H1000 | <<locked>> | 90% | 54,491 psi | 85% | 2894 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 56,217 psi | 88% | 2884 fps | 99.8% |
| Hodgdon H4831 SC | <<locked>> | 84% | 55,187 psi | 86% | 2867 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 90% | 56,652 psi | 89% | 3012 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,724 psi | 59% | 1903 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 56,289 psi | 88% | 2864 fps | 99.8% |
| IMR 7828 SSC | <<locked>> | 86% | 56,057 psi | 88% | 2933 fps | 99.9% |
| IMR 8133 Enduron | <<locked>> | 98% | 55,463 psi | 87% | 2930 fps | 100% |
| Lovex S071 | <<locked>> | 90% | 55,796 psi | 87% | 2822 fps | 100% |
| Norma 217 | <<locked>> | 98% | 56,956 psi | 89% | 2953 fps | 100% |
| Norma MRP | <<locked>> | 82% | 54,259 psi | 85% | 2900 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 57,566 psi | 90% | 2956 fps | 100% |
| Ramshot Magnum | <<locked>> | 88% | 56,072 psi | 88% | 2881 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,696 psi | 61% | 1946 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 53,417 psi | 84% | 2933 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 56,869 psi | 89% | 2963 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 82% | 55,100 psi | 86% | 2848 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 82% | 54,186 psi | 85% | 2861 fps | 100% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 51,517 psi | 81% | 2815 fps | 97.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 57,537 psi | 90% | 2910 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 56,507 psi | 89% | 2835 fps | 99.8% |
| Somchem S385 | <<locked>> | 82% | 54,433 psi | 85% | 2828 fps | 100% |
| Vihtavuori N165 | <<locked>> | 86% | 54,737 psi | 86% | 2818 fps | 100% |
| Vihtavuori N170 | <<locked>> | 90% | 54,157 psi | 85% | 2838 fps | 97% |
| Vihtavuori N555 | <<locked>> | 84% | 57,595 psi | 90% | 2877 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 57,551 psi | 90% | 2963 fps | 99.9% |
| Vihtavuori N565 | <<locked>> | 88% | 54,868 psi | 86% | 2897 fps | 99.8% |
| Vihtavuori N568 | <<locked>> | 92% | 57,232 psi | 90% | 2969 fps | 99.6% |
| Vihtavuori N570 | <<locked>> | 92% | 54,621 psi | 86% | 2966 fps | 98.1% |
| Winchester StaBALL HD | <<locked>> | 86% | 57,246 psi | 90% | 2933 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 84% | 54,360 psi | 85% | 2825 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% | 46,586 psi | 73% | 2684 fps | 100% |
| Accurate 8700 | <<locked>> | 98% | 46,050 psi | 72% | 2740 fps | 96% |
| Accurate MAGPRO | <<locked>> | 80% | 49,226 psi | 77% | 2825 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 80% | 51,097 psi | 80% | 2822 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 80% | 46,354 psi | 73% | 2769 fps | 99% |
| ADI AR 2217 | <<locked>> | 80% | 34,330 psi | 54% | 2510 fps | 96% |
| ADI AR 2218 | 88.6 gr | 90% | 42,743 psi | 67% | 2766 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 80% | 31,618 psi | 50% | 2474 fps | 97.9% |
| Alliant Reloder-19 | <<locked>> | 80% | 50,865 psi | 80% | 2812 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 47,021 psi | 74% | 2769 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 45,701 psi | 72% | 2697 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 39,914 psi | 63% | 2648 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 80% | 52,852 psi | 83% | 2874 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 88% | 44,164 psi | 69% | 2756 fps | 95.9% |
| Alliant Reloder-50 | <<locked>> | 92% | 44,266 psi | 69% | 2743 fps | 95.3% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 44,411 psi | 70% | 2680 fps | 96.3% |
| Bofors RP15 | <<locked>> | 80% | 43,685 psi | 68% | 2703 fps | 99.2% |
| Bofors RP30 | <<locked>> | 80% | 37,101 psi | 58% | 2582 fps | 97.1% |
| Bofors RP5 | <<locked>> | 80% | 47,021 psi | 74% | 2769 fps | 99.7% |
| Hodgdon H1000 | <<locked>> | 80% | 37,608 psi | 59% | 2589 fps | 97.9% |
| Hodgdon H4831 | <<locked>> | 80% | 48,805 psi | 76% | 2766 fps | 99% |
| Hodgdon H4831 SC | <<locked>> | 80% | 47,892 psi | 75% | 2749 fps | 98.8% |
| Hodgdon Retumbo | 74.3 gr | 80% | 38,972 psi | 61% | 2697 fps | 99.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,326 psi | 44% | 1709 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 49,356 psi | 77% | 2753 fps | 99.1% |
| IMR 7828 SSC | <<locked>> | 80% | 45,252 psi | 71% | 2756 fps | 98.8% |
| IMR 8133 Enduron | <<locked>> | 84% | 33,634 psi | 53% | 2510 fps | 95.5% |
| Lovex S071 | <<locked>> | 80% | 39,972 psi | 63% | 2562 fps | 99.8% |
| Norma 217 | <<locked>> | 80% | 29,356 psi | 46% | 2411 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 50,328 psi | 79% | 2838 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 45,759 psi | 72% | 2766 fps | 99.2% |
| Ramshot Magnum | <<locked>> | 80% | 41,147 psi | 64% | 2638 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,095 psi | 46% | 1749 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 38,725 psi | 61% | 2674 fps | 99.7% |
| ReloadSwiss RS 80 | <<locked>> | 82% | 38,392 psi | 60% | 2625 fps | 96% |
| Rottweil R 904 | <<locked>> | 80% | 51,605 psi | 81% | 2795 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 80% | 50,647 psi | 79% | 2805 fps | 99.9% |
| SNPE Vectan SP 13 | <<locked>> | 96% | 44,614 psi | 70% | 2694 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 50,299 psi | 79% | 2799 fps | 99.9% |
| Somchem S361 | <<locked>> | 80% | 52,895 psi | 83% | 2782 fps | 99.5% |
| Somchem S385 | <<locked>> | 80% | 50,807 psi | 80% | 2772 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 44,541 psi | 70% | 2654 fps | 99.7% |
| Vihtavuori N170 | <<locked>> | 86% | 47,021 psi | 74% | 2713 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 80% | 50,430 psi | 79% | 2776 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 49,806 psi | 78% | 2838 fps | 99.2% |
| Vihtavuori N565 | <<locked>> | 80% | 41,350 psi | 65% | 2654 fps | 97.7% |
| Vihtavuori N568 | <<locked>> | 82% | 39,465 psi | 62% | 2644 fps | 95.8% |
| Vihtavuori N570 | 82.9 gr | 86% | 43,584 psi | 68% | 2766 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 45,194 psi | 71% | 2762 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 47,123 psi | 74% | 2710 fps | 99.7% |
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 50 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 157gr | CutEdge MTAC. Hodgdon Retumbo delivers the highest muzzle velocity at 3,012 fps; across all powders the maximum-charge window runs from 1,903 fps to 3,012 fps. Accurate 8700 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 157.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 8700, 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. ADI AR 2218, Vihtavuori N570, Hodgdon Retumbo rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 157gr | CutEdge MTAC 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.