Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 175gr | Speer TBBC bullet and 41 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% | 55,869 psi | 88% | 2694 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 56,840 psi | 89% | 2805 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 82% | 55,506 psi | 87% | 2795 fps | 100% |
| ADI AR 2217 | <<locked>> | 90% | 55,637 psi | 87% | 2785 fps | 100% |
| ADI AR 2218 | <<locked>> | 94% | 56,579 psi | 89% | 2913 fps | 99.7% |
| ADI AR 2225 | <<locked>> | 92% | 55,811 psi | 87% | 2805 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 82% | 56,159 psi | 88% | 2789 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 82% | 54,578 psi | 86% | 2697 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 86% | 55,637 psi | 87% | 2769 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 54,636 psi | 86% | 2825 fps | 99.2% |
| Alliant Reloder-50 | <<locked>> | 94% | 55,143 psi | 86% | 2822 fps | 99% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 55,579 psi | 87% | 2759 fps | 99.4% |
| Bofors RP15 | <<locked>> | 84% | 55,782 psi | 87% | 2782 fps | 100% |
| Bofors RP30 | <<locked>> | 88% | 55,608 psi | 87% | 2795 fps | 100% |
| Bofors RP5 | <<locked>> | 82% | 56,159 psi | 88% | 2789 fps | 100% |
| Hodgdon H1000 | <<locked>> | 88% | 56,768 psi | 89% | 2799 fps | 100% |
| Hodgdon H4831 | <<locked>> | 82% | 57,667 psi | 90% | 2782 fps | 100% |
| Hodgdon H4831 SC | <<locked>> | 82% | 56,637 psi | 89% | 2769 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 55,709 psi | 87% | 2864 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,159 psi | 60% | 1818 fps | 100% |
| Hodgdon US 869 | <<locked>> | 98% | 57,508 psi | 90% | 2805 fps | 96% |
| IMR 4955 Enduron | <<locked>> | 82% | 57,348 psi | 90% | 2756 fps | 100% |
| IMR 7828 SSC | <<locked>> | 82% | 54,302 psi | 85% | 2779 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 88% | 56,202 psi | 88% | 2720 fps | 97.1% |
| IMR 8133 Enduron | <<locked>> | 94% | 54,795 psi | 86% | 2795 fps | 100% |
| Lovex S071 | <<locked>> | 86% | 54,462 psi | 85% | 2674 fps | 100% |
| Norma 217 | <<locked>> | 94% | 56,507 psi | 89% | 2815 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 55,753 psi | 87% | 2802 fps | 100% |
| Ramshot Magnum | <<locked>> | 84% | 54,259 psi | 85% | 2730 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,233 psi | 61% | 1860 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 56,449 psi | 88% | 2844 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 55,709 psi | 87% | 2822 fps | 100% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 54,418 psi | 85% | 2753 fps | 98.6% |
| Vihtavuori 20N29ᴾ | <<locked>> | 100% | 51,663 psi | 81% | 2723 fps | 96.7% |
| Vihtavuori N165 | <<locked>> | 84% | 56,391 psi | 88% | 2717 fps | 100% |
| Vihtavuori N170 | <<locked>> | 88% | 56,130 psi | 88% | 2756 fps | 98.4% |
| Vihtavuori N565 | <<locked>> | 86% | 57,319 psi | 90% | 2808 fps | 100% |
| Vihtavuori N568 | <<locked>> | 88% | 55,796 psi | 87% | 2825 fps | 99.9% |
| Vihtavuori N570 | <<locked>> | 90% | 57,566 psi | 90% | 2894 fps | 99.3% |
| Winchester StaBALL HD | <<locked>> | 82% | 56,159 psi | 88% | 2782 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 82% | 55,941 psi | 88% | 2723 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% | 52,156 psi | 82% | 2644 fps | 100% |
| Accurate 8700 | <<locked>> | 92% | 42,293 psi | 66% | 2562 fps | 96.1% |
| ADI AR 2213 | <<locked>> | 80% | 51,721 psi | 81% | 2736 fps | 100% |
| ADI AR 2217 | <<locked>> | 80% | 38,957 psi | 61% | 2503 fps | 98.7% |
| ADI AR 2218 | 83.1 gr | 84% | 38,841 psi | 61% | 2572 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 80% | 36,303 psi | 57% | 2480 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 52,446 psi | 82% | 2733 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 51,169 psi | 80% | 2651 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 45,353 psi | 71% | 2621 fps | 100% |
| Alliant Reloder-33 | 82.6 gr | 82% | 40,364 psi | 63% | 2566 fps | 95.8% |
| Alliant Reloder-50 | <<locked>> | 86% | 41,002 psi | 64% | 2566 fps | 95.4% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 48,588 psi | 76% | 2644 fps | 98.3% |
| Bofors RP15 | <<locked>> | 80% | 48,834 psi | 77% | 2677 fps | 100% |
| Bofors RP30 | <<locked>> | 80% | 42,351 psi | 66% | 2579 fps | 99.3% |
| Bofors RP5 | <<locked>> | 80% | 52,446 psi | 82% | 2733 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 42,467 psi | 67% | 2572 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 80% | 53,853 psi | 84% | 2726 fps | 99.9% |
| Hodgdon H4831 SC | <<locked>> | 80% | 52,910 psi | 83% | 2713 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 80% | 44,715 psi | 70% | 2690 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,645 psi | 45% | 1631 fps | 100% |
| Hodgdon US 869 | <<locked>> | 96% | 53,505 psi | 84% | 2743 fps | 95% |
| IMR 4955 Enduron | <<locked>> | 80% | 53,882 psi | 84% | 2707 fps | 99.9% |
| IMR 7828 SSC | <<locked>> | 80% | 50,546 psi | 79% | 2723 fps | 99.9% |
| IMR 7977 Enduron | <<locked>> | 84% | 49,501 psi | 78% | 2612 fps | 95.5% |
| IMR 8133 Enduron | <<locked>> | 80% | 33,881 psi | 53% | 2408 fps | 96.9% |
| Lovex S071 | <<locked>> | 80% | 45,078 psi | 71% | 2536 fps | 100% |
| Norma 217 | <<locked>> | 80% | 34,563 psi | 54% | 2434 fps | 99% |
| Ramshot Grand | <<locked>> | 80% | 51,808 psi | 81% | 2746 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 46,775 psi | 73% | 2618 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,501 psi | 46% | 1670 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 44,846 psi | 70% | 2671 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 41,104 psi | 64% | 2572 fps | 98% |
| SNPE Vectan SP 13 | <<locked>> | 90% | 41,263 psi | 65% | 2523 fps | 95.2% |
| Vihtavuori 20N29 | <<locked>> | 98% | 48,138 psi | 75% | 2664 fps | 95.7% |
| Vihtavuori N165 | <<locked>> | 80% | 49,458 psi | 78% | 2618 fps | 100% |
| Vihtavuori N170 | <<locked>> | 80% | 42,685 psi | 67% | 2523 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 80% | 46,760 psi | 73% | 2641 fps | 99.5% |
| Vihtavuori N568 | <<locked>> | 80% | 41,843 psi | 66% | 2585 fps | 97.7% |
| Vihtavuori N570 | 77.5 gr | 80% | 40,001 psi | 63% | 2575 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 52,112 psi | 82% | 2730 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 52,214 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 46 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 175gr | Speer TBBC. 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 46 of the 46 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 | Speer TBBC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Hodgdon 50BMG burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.