Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 160gr | Speer Magnum Tip Soft Point bullet and 40 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 Alliant Reloder-50.
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>> | 82% | 54,433 psi | 85% | 2776 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 55,361 psi | 87% | 2867 fps | 98.5% |
| Accurate MAGPRO | <<locked>> | 82% | 57,653 psi | 90% | 2936 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 82% | 54,143 psi | 85% | 2871 fps | 99.9% |
| ADI AR 2217 | <<locked>> | 90% | 54,128 psi | 85% | 2861 fps | 100% |
| ADI AR 2218 | <<locked>> | 94% | 54,940 psi | 86% | 2979 fps | 99.2% |
| ADI AR 2225 | <<locked>> | 92% | 54,215 psi | 85% | 2884 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 82% | 54,781 psi | 86% | 2867 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 84% | 56,898 psi | 89% | 2828 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 86% | 54,215 psi | 85% | 2854 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 57,203 psi | 90% | 2956 fps | 99.1% |
| Alliant Reloder-50 | <<locked>> | 94% | 53,606 psi | 84% | 2884 fps | 98.2% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 54,317 psi | 85% | 2831 fps | 98.8% |
| Bofors RP15 | <<locked>> | 84% | 54,447 psi | 85% | 2864 fps | 100% |
| Bofors RP30 | <<locked>> | 88% | 54,273 psi | 85% | 2874 fps | 100% |
| Bofors RP5 | <<locked>> | 82% | 54,781 psi | 86% | 2867 fps | 100% |
| Hodgdon H1000 | <<locked>> | 88% | 55,288 psi | 87% | 2874 fps | 100% |
| Hodgdon H4831 | <<locked>> | 82% | 56,347 psi | 88% | 2861 fps | 99.9% |
| Hodgdon H4831 SC | <<locked>> | 82% | 55,390 psi | 87% | 2848 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 86% | 53,983 psi | 85% | 2940 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,072 psi | 60% | 1903 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 56,260 psi | 88% | 2841 fps | 99.9% |
| IMR 7828 SSC | <<locked>> | 84% | 56,710 psi | 89% | 2917 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 88% | 55,201 psi | 87% | 2795 fps | 96.1% |
| IMR 8133 Enduron | <<locked>> | 96% | 57,101 psi | 89% | 2927 fps | 100% |
| Lovex S071 | <<locked>> | 88% | 56,753 psi | 89% | 2805 fps | 100% |
| Norma 217 | <<locked>> | 94% | 54,882 psi | 86% | 2890 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 54,302 psi | 85% | 2881 fps | 100% |
| Ramshot Magnum | <<locked>> | 86% | 56,898 psi | 89% | 2864 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,088 psi | 61% | 1946 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 54,752 psi | 86% | 2920 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 54,172 psi | 85% | 2894 fps | 99.7% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 56,884 psi | 89% | 2874 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 84% | 55,071 psi | 86% | 2795 fps | 100% |
| Vihtavuori N170 | <<locked>> | 88% | 54,926 psi | 86% | 2828 fps | 97.6% |
| Vihtavuori N565 | <<locked>> | 86% | 55,985 psi | 88% | 2887 fps | 100% |
| Vihtavuori N568 | <<locked>> | 88% | 54,317 psi | 85% | 2894 fps | 99.5% |
| Vihtavuori N570 | <<locked>> | 90% | 56,072 psi | 88% | 2963 fps | 98.7% |
| Winchester StaBALL HD | <<locked>> | 82% | 54,520 psi | 85% | 2864 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 82% | 54,621 psi | 86% | 2802 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% | 50,894 psi | 80% | 2723 fps | 100% |
| Accurate 8700 | <<locked>> | 94% | 44,179 psi | 69% | 2677 fps | 95.8% |
| Accurate MAGPRO | <<locked>> | 80% | 53,563 psi | 84% | 2871 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 80% | 50,357 psi | 79% | 2812 fps | 99.7% |
| ADI AR 2217 | <<locked>> | 80% | 37,855 psi | 59% | 2566 fps | 97.8% |
| ADI AR 2218 | 88.1 gr | 86% | 40,712 psi | 64% | 2694 fps | 95% |
| ADI AR 2225 | <<locked>> | 80% | 35,172 psi | 55% | 2539 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 80% | 51,097 psi | 80% | 2812 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 49,763 psi | 78% | 2730 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 44,034 psi | 69% | 2694 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 84% | 42,308 psi | 66% | 2687 fps | 95.6% |
| Alliant Reloder-50 | 91.5 gr | 88% | 42,815 psi | 67% | 2684 fps | 95.2% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 47,645 psi | 75% | 2720 fps | 97.5% |
| Bofors RP15 | <<locked>> | 80% | 47,659 psi | 75% | 2753 fps | 99.8% |
| Bofors RP30 | <<locked>> | 80% | 41,118 psi | 64% | 2638 fps | 98.5% |
| Bofors RP5 | <<locked>> | 80% | 51,097 psi | 80% | 2812 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 41,205 psi | 65% | 2638 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 80% | 52,547 psi | 82% | 2802 fps | 99.6% |
| Hodgdon H4831 SC | <<locked>> | 80% | 51,634 psi | 81% | 2785 fps | 99.5% |
| Hodgdon Retumbo | <<locked>> | 80% | 43,236 psi | 68% | 2756 fps | 99.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,587 psi | 45% | 1706 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 52,808 psi | 83% | 2785 fps | 99.7% |
| IMR 7828 SSC | <<locked>> | 80% | 49,182 psi | 77% | 2795 fps | 99.6% |
| IMR 7977 Enduron | <<locked>> | 86% | 51,721 psi | 81% | 2736 fps | 95.3% |
| IMR 8133 Enduron | <<locked>> | 80% | 32,706 psi | 51% | 2457 fps | 95.4% |
| Lovex S071 | <<locked>> | 80% | 43,830 psi | 69% | 2608 fps | 100% |
| Norma 217 | <<locked>> | 80% | 33,301 psi | 52% | 2487 fps | 97.9% |
| Ramshot Grand | <<locked>> | 80% | 50,357 psi | 79% | 2815 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 80% | 45,556 psi | 71% | 2690 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,399 psi | 46% | 1749 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 43,221 psi | 68% | 2730 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 39,769 psi | 62% | 2628 fps | 96.9% |
| SNPE Vectan SP 13 | <<locked>> | 94% | 46,108 psi | 72% | 2697 fps | 96% |
| Vihtavuori N165 | <<locked>> | 80% | 48,283 psi | 76% | 2694 fps | 100% |
| Vihtavuori N170 | <<locked>> | 84% | 47,747 psi | 75% | 2703 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 80% | 45,571 psi | 71% | 2710 fps | 98.9% |
| Vihtavuori N568 | <<locked>> | 80% | 40,698 psi | 64% | 2644 fps | 96.6% |
| Vihtavuori N570 | 84.2 gr | 84% | 44,918 psi | 70% | 2762 fps | 96% |
| Winchester StaBALL HD | <<locked>> | 80% | 50,502 psi | 79% | 2808 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 50,879 psi | 80% | 2746 fps | 100% |
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 40 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 160gr | Speer Magnum Tip Soft Point. ADI AR 2218 delivers the highest muzzle velocity at 2,979 fps; across all powders the maximum-charge window runs from 1,903 fps to 2,979 fps. Accurate 8700 gives the best case fill at 100 %, and 40 of the 40 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:12.5 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, Alliant Reloder-50 rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 160gr | Speer Magnum Tip Soft Point 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.