Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 175gr | Barnes Solid RN 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-33.
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% | 55,738 psi | 87% | 2694 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 56,927 psi | 89% | 2805 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 82% | 55,608 psi | 87% | 2795 fps | 100% |
| ADI AR 2217 | <<locked>> | 90% | 55,695 psi | 87% | 2785 fps | 100% |
| ADI AR 2218 | <<locked>> | 94% | 56,710 psi | 89% | 2913 fps | 99.7% |
| ADI AR 2225 | <<locked>> | 92% | 55,898 psi | 88% | 2805 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 82% | 56,217 psi | 88% | 2789 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 82% | 54,694 psi | 86% | 2700 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 86% | 55,753 psi | 87% | 2772 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 54,723 psi | 86% | 2825 fps | 99.2% |
| Alliant Reloder-50 | <<locked>> | 94% | 55,274 psi | 87% | 2825 fps | 99% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 55,477 psi | 87% | 2756 fps | 99.4% |
| Bofors RP15 | <<locked>> | 84% | 55,883 psi | 88% | 2782 fps | 100% |
| Bofors RP30 | <<locked>> | 88% | 55,709 psi | 87% | 2799 fps | 100% |
| Bofors RP5 | <<locked>> | 82% | 56,217 psi | 88% | 2789 fps | 100% |
| Hodgdon H1000 | <<locked>> | 88% | 56,855 psi | 89% | 2799 fps | 100% |
| Hodgdon H4831 SC | <<locked>> | 82% | 56,739 psi | 89% | 2769 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 55,825 psi | 87% | 2864 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,116 psi | 60% | 1818 fps | 100% |
| Hodgdon US 869 | <<locked>> | 98% | 57,566 psi | 90% | 2805 fps | 96% |
| IMR 4955 Enduron | <<locked>> | 82% | 57,421 psi | 90% | 2756 fps | 100% |
| IMR 7828 SSC | <<locked>> | 82% | 54,389 psi | 85% | 2782 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 88% | 56,289 psi | 88% | 2720 fps | 97.1% |
| IMR 8133 Enduron | <<locked>> | 94% | 54,897 psi | 86% | 2799 fps | 100% |
| Lovex S071 | <<locked>> | 86% | 54,563 psi | 86% | 2677 fps | 100% |
| Norma 217 | <<locked>> | 94% | 56,608 psi | 89% | 2815 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 55,869 psi | 88% | 2805 fps | 100% |
| Ramshot Magnum | <<locked>> | 84% | 54,360 psi | 85% | 2733 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,175 psi | 61% | 1860 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 56,550 psi | 89% | 2844 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 55,796 psi | 87% | 2825 fps | 100% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 54,491 psi | 85% | 2753 fps | 98.6% |
| Vihtavuori 20N29ᴾ | <<locked>> | 100% | 51,735 psi | 81% | 2723 fps | 96.7% |
| Vihtavuori N165 | <<locked>> | 84% | 56,492 psi | 89% | 2717 fps | 100% |
| Vihtavuori N170 | <<locked>> | 88% | 56,217 psi | 88% | 2756 fps | 98.4% |
| Vihtavuori N565 | <<locked>> | 86% | 57,392 psi | 90% | 2808 fps | 100% |
| Vihtavuori N568 | <<locked>> | 88% | 55,883 psi | 88% | 2825 fps | 99.9% |
| Vihtavuori N570 | <<locked>> | 90% | 57,667 psi | 90% | 2894 fps | 99.3% |
| Winchester StaBALL HD | <<locked>> | 82% | 56,231 psi | 88% | 2782 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 82% | 56,043 psi | 88% | 2726 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% | 52,257 psi | 82% | 2648 fps | 100% |
| Accurate 8700 | <<locked>> | 92% | 42,366 psi | 66% | 2562 fps | 96.1% |
| ADI AR 2213 | <<locked>> | 80% | 51,822 psi | 81% | 2740 fps | 100% |
| ADI AR 2217 | <<locked>> | 80% | 39,044 psi | 61% | 2507 fps | 98.7% |
| ADI AR 2218 | 83.2 gr | 84% | 38,885 psi | 61% | 2575 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 80% | 36,405 psi | 57% | 2484 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 52,547 psi | 82% | 2733 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 51,242 psi | 80% | 2651 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 45,426 psi | 71% | 2621 fps | 100% |
| Alliant Reloder-33 | 82.7 gr | 82% | 40,451 psi | 63% | 2566 fps | 95.8% |
| Alliant Reloder-50 | <<locked>> | 86% | 41,089 psi | 64% | 2569 fps | 95.5% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 48,660 psi | 76% | 2648 fps | 98.4% |
| Bofors RP15 | <<locked>> | 80% | 48,936 psi | 77% | 2677 fps | 100% |
| Bofors RP30 | <<locked>> | 80% | 42,453 psi | 67% | 2579 fps | 99.3% |
| Bofors RP5 | <<locked>> | 80% | 52,547 psi | 82% | 2733 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 42,569 psi | 67% | 2575 fps | 99.7% |
| Hodgdon H4831 SC | <<locked>> | 80% | 52,968 psi | 83% | 2713 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 80% | 44,831 psi | 70% | 2690 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,747 psi | 45% | 1634 fps | 100% |
| Hodgdon US 869 | <<locked>> | 96% | 53,563 psi | 84% | 2743 fps | 95% |
| IMR 4955 Enduron | <<locked>> | 80% | 53,969 psi | 85% | 2707 fps | 99.9% |
| IMR 7828 SSC | <<locked>> | 80% | 50,662 psi | 79% | 2726 fps | 99.9% |
| IMR 7977 Enduron | <<locked>> | 84% | 49,559 psi | 78% | 2612 fps | 95.5% |
| IMR 8133 Enduron | <<locked>> | 80% | 33,953 psi | 53% | 2408 fps | 96.9% |
| Lovex S071 | <<locked>> | 80% | 45,020 psi | 71% | 2536 fps | 100% |
| Norma 217 | <<locked>> | 80% | 34,664 psi | 54% | 2438 fps | 99% |
| Ramshot Grand | <<locked>> | 80% | 51,924 psi | 81% | 2746 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 46,862 psi | 73% | 2621 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,457 psi | 46% | 1670 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 44,788 psi | 70% | 2667 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 41,191 psi | 65% | 2572 fps | 98.1% |
| SNPE Vectan SP 13 | <<locked>> | 90% | 41,336 psi | 65% | 2523 fps | 95.2% |
| Vihtavuori 20N29 | <<locked>> | 98% | 48,211 psi | 76% | 2664 fps | 95.8% |
| Vihtavuori N165 | <<locked>> | 80% | 49,516 psi | 78% | 2618 fps | 100% |
| Vihtavuori N170 | <<locked>> | 80% | 42,772 psi | 67% | 2526 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 80% | 46,833 psi | 73% | 2641 fps | 99.5% |
| Vihtavuori N568 | <<locked>> | 80% | 41,916 psi | 66% | 2585 fps | 97.8% |
| Vihtavuori N570 | 77.6 gr | 80% | 40,059 psi | 63% | 2575 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 52,228 psi | 82% | 2730 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 52,286 psi | 82% | 2671 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 | 175gr | Barnes Solid RN. ADI AR 2218 delivers the highest muzzle velocity at 2,913 fps; across all powders the maximum-charge window runs from 1,818 fps to 2,913 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 175.0 gr projectile in 0.284" calls for a 1:10.5 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-33 rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 175gr | Barnes Solid RN 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.