Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 160gr | Speer TBBC 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 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>> | 84% | 56,855 psi | 89% | 2808 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 53,432 psi | 84% | 2844 fps | 98.1% |
| Accurate MAGPRO | <<locked>> | 82% | 56,159 psi | 88% | 2917 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 82% | 57,522 psi | 90% | 2894 fps | 100% |
| ADI AR 2213 | <<locked>> | 84% | 56,463 psi | 88% | 2910 fps | 100% |
| ADI AR 2217 | <<locked>> | 92% | 56,434 psi | 88% | 2894 fps | 100% |
| ADI AR 2218 | <<locked>> | 96% | 57,334 psi | 90% | 3018 fps | 99.4% |
| ADI AR 2225 | <<locked>> | 94% | 56,376 psi | 88% | 2917 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 57,667 psi | 90% | 2887 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 57,087 psi | 89% | 2881 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 84% | 57,058 psi | 89% | 2904 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 84% | 55,521 psi | 87% | 2812 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 88% | 56,463 psi | 88% | 2887 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 55,317 psi | 87% | 2930 fps | 98.8% |
| Alliant Reloder-50 | <<locked>> | 96% | 55,767 psi | 87% | 2923 fps | 98.5% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 56,608 psi | 89% | 2867 fps | 99% |
| Bofors RP15 | <<locked>> | 86% | 56,652 psi | 89% | 2897 fps | 100% |
| Bofors RP30 | <<locked>> | 90% | 56,362 psi | 88% | 2907 fps | 100% |
| Bofors RP5 | <<locked>> | 84% | 57,058 psi | 89% | 2904 fps | 100% |
| Hodgdon H1000 | <<locked>> | 90% | 57,609 psi | 90% | 2910 fps | 100% |
| Hodgdon H4831 | <<locked>> | 82% | 54,955 psi | 86% | 2841 fps | 99.8% |
| Hodgdon H4831 SC | <<locked>> | 82% | 53,969 psi | 85% | 2825 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 88% | 56,217 psi | 88% | 2976 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,927 psi | 59% | 1893 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 55,114 psi | 86% | 2822 fps | 99.8% |
| IMR 7828 SSC | <<locked>> | 84% | 55,129 psi | 86% | 2897 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 90% | 57,551 psi | 90% | 2828 fps | 96.5% |
| IMR 8133 Enduron | <<locked>> | 96% | 55,303 psi | 87% | 2900 fps | 100% |
| Lovex S071 | <<locked>> | 88% | 55,259 psi | 87% | 2785 fps | 100% |
| Norma 217 | <<locked>> | 96% | 56,869 psi | 89% | 2923 fps | 100% |
| Norma MRP | <<locked>> | 82% | 57,464 psi | 90% | 2917 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 56,666 psi | 89% | 2917 fps | 100% |
| Ramshot Magnum | <<locked>> | 86% | 55,245 psi | 87% | 2841 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,117 psi | 61% | 1939 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 57,232 psi | 90% | 2959 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 56,434 psi | 88% | 2930 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 82% | 57,595 psi | 90% | 2861 fps | 100% |
| Rottweil R 905 | <<locked>> | 82% | 56,956 psi | 89% | 2874 fps | 100% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 54,984 psi | 86% | 2851 fps | 98% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 56,623 psi | 89% | 2871 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 57,174 psi | 90% | 2841 fps | 100% |
| Vihtavuori N165 | <<locked>> | 86% | 57,595 psi | 90% | 2831 fps | 100% |
| Vihtavuori N170 | <<locked>> | 90% | 57,217 psi | 90% | 2861 fps | 97.9% |
| Vihtavuori N555 | <<locked>> | 82% | 57,029 psi | 89% | 2841 fps | 100% |
| Vihtavuori N560 | <<locked>> | 82% | 56,724 psi | 89% | 2927 fps | 99.9% |
| Vihtavuori N565 | <<locked>> | 86% | 54,549 psi | 85% | 2864 fps | 99.9% |
| Vihtavuori N568 | <<locked>> | 90% | 56,536 psi | 89% | 2933 fps | 99.7% |
| Vihtavuori N570 | <<locked>> | 90% | 54,230 psi | 85% | 2936 fps | 98.3% |
| Winchester StaBALL HD | <<locked>> | 84% | 56,913 psi | 89% | 2900 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 84% | 57,217 psi | 90% | 2841 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% | 49,588 psi | 78% | 2707 fps | 100% |
| Accurate 8700 | <<locked>> | 94% | 42,583 psi | 67% | 2651 fps | 95.1% |
| Accurate MAGPRO | <<locked>> | 80% | 52,286 psi | 82% | 2854 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 80% | 53,693 psi | 84% | 2835 fps | 100% |
| ADI AR 2213 | <<locked>> | 80% | 49,008 psi | 77% | 2789 fps | 99.5% |
| ADI AR 2217 | <<locked>> | 80% | 36,724 psi | 58% | 2543 fps | 97.3% |
| ADI AR 2218 | 88 gr | 88% | 42,351 psi | 66% | 2733 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 80% | 34,055 psi | 53% | 2513 fps | 99% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 53,940 psi | 85% | 2831 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 53,432 psi | 84% | 2825 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 80% | 49,777 psi | 78% | 2792 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 48,559 psi | 76% | 2717 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 42,685 psi | 67% | 2671 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 84% | 40,857 psi | 64% | 2661 fps | 95% |
| Alliant Reloder-50 | <<locked>> | 90% | 44,469 psi | 70% | 2723 fps | 95.7% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 46,514 psi | 73% | 2697 fps | 97.1% |
| Bofors RP15 | <<locked>> | 80% | 46,383 psi | 73% | 2730 fps | 99.7% |
| Bofors RP30 | <<locked>> | 80% | 39,885 psi | 63% | 2618 fps | 98.2% |
| Bofors RP5 | <<locked>> | 80% | 49,777 psi | 78% | 2792 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 80% | 40,118 psi | 63% | 2618 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 80% | 51,314 psi | 80% | 2782 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 80% | 50,386 psi | 79% | 2769 fps | 99.3% |
| Hodgdon Retumbo | <<locked>> | 80% | 41,800 psi | 66% | 2733 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,529 psi | 45% | 1699 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 51,648 psi | 81% | 2766 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 80% | 47,993 psi | 75% | 2779 fps | 99.4% |
| IMR 7977 Enduron | <<locked>> | 88% | 53,867 psi | 84% | 2772 fps | 95.7% |
| IMR 8133 Enduron | 75.3 gr | 82% | 33,982 psi | 53% | 2493 fps | 95.9% |
| Lovex S071 | <<locked>> | 80% | 42,714 psi | 67% | 2589 fps | 100% |
| Norma 217 | <<locked>> | 80% | 32,184 psi | 50% | 2464 fps | 97.4% |
| Norma MRP | <<locked>> | 80% | 53,476 psi | 84% | 2858 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 48,733 psi | 76% | 2792 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 80% | 44,150 psi | 69% | 2667 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,356 psi | 46% | 1742 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 41,698 psi | 65% | 2710 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 38,479 psi | 60% | 2602 fps | 96.3% |
| Rottweil R 904 | <<locked>> | 80% | 54,041 psi | 85% | 2808 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 80% | 53,403 psi | 84% | 2822 fps | 100% |
| SNPE Vectan SP 13 | <<locked>> | 94% | 44,686 psi | 70% | 2671 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 53,055 psi | 83% | 2818 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 53,519 psi | 84% | 2789 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 47,065 psi | 74% | 2674 fps | 99.9% |
| Vihtavuori N170 | <<locked>> | 84% | 46,586 psi | 73% | 2684 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 80% | 53,490 psi | 84% | 2792 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 52,794 psi | 83% | 2864 fps | 99.7% |
| Vihtavuori N565 | <<locked>> | 80% | 44,324 psi | 69% | 2690 fps | 98.6% |
| Vihtavuori N568 | <<locked>> | 80% | 39,378 psi | 62% | 2621 fps | 96.1% |
| Vihtavuori N570 | 82.3 gr | 84% | 43,511 psi | 68% | 2736 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 48,863 psi | 77% | 2789 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 49,690 psi | 78% | 2730 fps | 99.9% |
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 | 160gr | Speer TBBC. ADI AR 2218 delivers the highest muzzle velocity at 3,018 fps; across all powders the maximum-charge window runs from 1,893 fps to 3,018 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 160.0 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, IMR 8133 Enduron rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 160gr | Speer TBBC 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.