Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 170gr | Geco PLUS bullet and 38 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 IMR 8133 Enduron.
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% | 56,333 psi | 88% | 2733 fps | 100% |
| Accurate 8700 | <<locked>> | 98% | 53,751 psi | 84% | 2785 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 82% | 56,173 psi | 88% | 2835 fps | 100% |
| ADI AR 2217 | <<locked>> | 90% | 56,246 psi | 88% | 2822 fps | 100% |
| ADI AR 2218 | <<locked>> | 94% | 57,667 psi | 90% | 2959 fps | 99.7% |
| ADI AR 2225 | <<locked>> | 92% | 56,768 psi | 89% | 2848 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 82% | 56,768 psi | 89% | 2828 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 82% | 55,187 psi | 86% | 2736 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 86% | 56,449 psi | 88% | 2812 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 55,564 psi | 87% | 2867 fps | 99.2% |
| Alliant Reloder-50 | <<locked>> | 94% | 56,173 psi | 88% | 2864 fps | 99% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 56,072 psi | 88% | 2795 fps | 99.4% |
| Bofors RP15 | <<locked>> | 84% | 56,420 psi | 88% | 2825 fps | 100% |
| Bofors RP30 | <<locked>> | 88% | 56,478 psi | 89% | 2841 fps | 100% |
| Bofors RP5 | <<locked>> | 82% | 56,768 psi | 89% | 2828 fps | 100% |
| Hodgdon H1000 | <<locked>> | 88% | 57,609 psi | 90% | 2838 fps | 100% |
| Hodgdon H4831 SC | <<locked>> | 82% | 57,261 psi | 90% | 2808 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 56,565 psi | 89% | 2904 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,130 psi | 60% | 1850 fps | 100% |
| IMR 7828 SSC | <<locked>> | 82% | 54,984 psi | 86% | 2822 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 88% | 56,768 psi | 89% | 2759 fps | 97.1% |
| IMR 8133 Enduron | <<locked>> | 94% | 55,521 psi | 87% | 2835 fps | 100% |
| Lovex S071 | <<locked>> | 86% | 55,158 psi | 86% | 2717 fps | 100% |
| Norma 217 | <<locked>> | 94% | 57,290 psi | 90% | 2854 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 56,391 psi | 88% | 2841 fps | 100% |
| Ramshot Magnum | <<locked>> | 84% | 55,085 psi | 86% | 2772 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,175 psi | 61% | 1893 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 57,435 psi | 90% | 2884 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 56,536 psi | 89% | 2864 fps | 100% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 55,347 psi | 87% | 2792 fps | 98.6% |
| Vihtavuori 20N29ᴾ | <<locked>> | 100% | 52,663 psi | 83% | 2766 fps | 96.8% |
| Vihtavuori N165 | <<locked>> | 84% | 56,956 psi | 89% | 2756 fps | 100% |
| Vihtavuori N170 | <<locked>> | 88% | 56,739 psi | 89% | 2795 fps | 98.4% |
| Vihtavuori N565 | <<locked>> | 84% | 54,273 psi | 85% | 2795 fps | 100% |
| Vihtavuori N568 | <<locked>> | 88% | 56,724 psi | 89% | 2867 fps | 99.9% |
| Vihtavuori N570 | <<locked>> | 88% | 54,404 psi | 85% | 2871 fps | 98.8% |
| Winchester StaBALL HD | <<locked>> | 82% | 57,072 psi | 89% | 2825 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 82% | 56,492 psi | 89% | 2762 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% | 52,707 psi | 83% | 2684 fps | 100% |
| Accurate 8700 | <<locked>> | 92% | 42,931 psi | 67% | 2598 fps | 96.1% |
| ADI AR 2213 | <<locked>> | 80% | 52,243 psi | 82% | 2776 fps | 99.9% |
| ADI AR 2217 | <<locked>> | 80% | 39,479 psi | 62% | 2543 fps | 98.7% |
| ADI AR 2218 | 85.6 gr | 84% | 39,450 psi | 62% | 2612 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 80% | 36,796 psi | 58% | 2516 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 80% | 52,953 psi | 83% | 2772 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 51,576 psi | 81% | 2687 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 45,934 psi | 72% | 2657 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 82% | 41,104 psi | 64% | 2605 fps | 95.8% |
| Alliant Reloder-50 | <<locked>> | 86% | 41,785 psi | 65% | 2605 fps | 95.5% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 49,226 psi | 77% | 2687 fps | 98.4% |
| Bofors RP15 | <<locked>> | 80% | 49,414 psi | 77% | 2717 fps | 100% |
| Bofors RP30 | <<locked>> | 80% | 42,902 psi | 67% | 2615 fps | 99.3% |
| Bofors RP5 | <<locked>> | 80% | 52,953 psi | 83% | 2772 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 43,134 psi | 68% | 2615 fps | 99.7% |
| Hodgdon H4831 SC | <<locked>> | 80% | 53,374 psi | 84% | 2749 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 80% | 45,324 psi | 71% | 2730 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,732 psi | 45% | 1663 fps | 100% |
| IMR 7828 SSC | <<locked>> | 80% | 51,111 psi | 80% | 2762 fps | 99.9% |
| IMR 7977 Enduron | <<locked>> | 84% | 49,966 psi | 78% | 2651 fps | 95.5% |
| IMR 8133 Enduron | 74.8 gr | 80% | 34,258 psi | 54% | 2441 fps | 96.8% |
| Lovex S071 | <<locked>> | 80% | 45,556 psi | 71% | 2575 fps | 100% |
| Norma 217 | <<locked>> | 80% | 34,983 psi | 55% | 2467 fps | 98.9% |
| Ramshot Grand | <<locked>> | 80% | 52,518 psi | 82% | 2785 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 47,529 psi | 74% | 2657 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,573 psi | 46% | 1703 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 45,426 psi | 71% | 2703 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 41,742 psi | 65% | 2608 fps | 98% |
| SNPE Vectan SP 13 | <<locked>> | 90% | 41,814 psi | 66% | 2559 fps | 95.2% |
| Vihtavuori 20N29 | <<locked>> | 98% | 48,936 psi | 77% | 2700 fps | 95.8% |
| Vihtavuori N165 | <<locked>> | 80% | 49,937 psi | 78% | 2654 fps | 100% |
| Vihtavuori N170 | <<locked>> | 80% | 43,192 psi | 68% | 2562 fps | 95% |
| Vihtavuori N565 | <<locked>> | 80% | 47,384 psi | 74% | 2680 fps | 99.5% |
| Vihtavuori N568 | <<locked>> | 80% | 42,554 psi | 67% | 2625 fps | 97.8% |
| Vihtavuori N570 | 79.8 gr | 80% | 40,582 psi | 64% | 2612 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 52,924 psi | 83% | 2769 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 52,837 psi | 83% | 2710 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 38 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 170gr | Geco PLUS. ADI AR 2218 delivers the highest muzzle velocity at 2,959 fps; across all powders the maximum-charge window runs from 1,850 fps to 2,959 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 38 of the 38 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 170.0 gr projectile in 0.284" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori 20N29 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, IMR 8133 Enduron rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 170gr | Geco PLUS 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.