Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 160gr | Barnes Solid bullet and 49 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ADI AR 2218 and Vihtavuori N570.
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% | 55,477 psi | 87% | 2792 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 51,445 psi | 81% | 2812 fps | 97.6% |
| Accurate MAGPRO | <<locked>> | 82% | 54,621 psi | 86% | 2894 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 82% | 56,101 psi | 88% | 2874 fps | 100% |
| ADI AR 2213 | <<locked>> | 84% | 55,085 psi | 86% | 2890 fps | 99.9% |
| ADI AR 2217 | <<locked>> | 92% | 54,708 psi | 86% | 2874 fps | 100% |
| ADI AR 2218 | <<locked>> | 96% | 55,448 psi | 87% | 2992 fps | 99.1% |
| ADI AR 2225 | <<locked>> | 94% | 54,447 psi | 85% | 2894 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 55,738 psi | 87% | 2864 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 84% | 55,666 psi | 87% | 2884 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 84% | 54,056 psi | 85% | 2795 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 88% | 54,839 psi | 86% | 2867 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 57,566 psi | 90% | 2969 fps | 99% |
| Alliant Reloder-50 | <<locked>> | 96% | 53,679 psi | 84% | 2894 fps | 98% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 55,434 psi | 87% | 2851 fps | 98.8% |
| Bofors RP15 | <<locked>> | 86% | 55,114 psi | 86% | 2877 fps | 100% |
| Bofors RP30 | <<locked>> | 90% | 54,824 psi | 86% | 2887 fps | 100% |
| Bofors RP5 | <<locked>> | 84% | 55,666 psi | 87% | 2884 fps | 100% |
| Hodgdon H1000 | <<locked>> | 90% | 56,086 psi | 88% | 2890 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 57,551 psi | 90% | 2881 fps | 99.9% |
| Hodgdon H4831 SC | <<locked>> | 84% | 56,478 psi | 89% | 2864 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 88% | 54,433 psi | 85% | 2956 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,913 psi | 59% | 1886 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 57,421 psi | 90% | 2854 fps | 99.9% |
| IMR 7828 SSC | <<locked>> | 86% | 57,522 psi | 90% | 2930 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 90% | 56,347 psi | 88% | 2808 fps | 96.1% |
| IMR 8133 Enduron | <<locked>> | 98% | 57,159 psi | 90% | 2933 fps | 100% |
| Lovex S071 | <<locked>> | 90% | 57,580 psi | 90% | 2818 fps | 100% |
| Norma 217 | <<locked>> | 96% | 54,882 psi | 86% | 2900 fps | 100% |
| Norma MRP | <<locked>> | 82% | 55,854 psi | 88% | 2897 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 54,955 psi | 86% | 2894 fps | 100% |
| Ramshot Magnum | <<locked>> | 86% | 53,737 psi | 84% | 2825 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,943 psi | 61% | 1929 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 55,347 psi | 87% | 2936 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 54,621 psi | 86% | 2907 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 82% | 56,449 psi | 88% | 2844 fps | 100% |
| Rottweil R 905 | <<locked>> | 82% | 55,535 psi | 87% | 2854 fps | 100% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 53,258 psi | 83% | 2825 fps | 97.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 55,172 psi | 86% | 2851 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 55,854 psi | 88% | 2822 fps | 100% |
| Vihtavuori N165 | <<locked>> | 86% | 56,173 psi | 88% | 2812 fps | 100% |
| Vihtavuori N170 | <<locked>> | 90% | 55,796 psi | 87% | 2841 fps | 97.5% |
| Vihtavuori N555 | <<locked>> | 82% | 55,753 psi | 87% | 2825 fps | 100% |
| Vihtavuori N560 | <<locked>> | 82% | 55,143 psi | 86% | 2900 fps | 99.8% |
| Vihtavuori N565 | <<locked>> | 88% | 56,666 psi | 89% | 2900 fps | 99.9% |
| Vihtavuori N568 | <<locked>> | 90% | 54,868 psi | 86% | 2910 fps | 99.5% |
| Vihtavuori N570 | <<locked>> | 92% | 56,492 psi | 89% | 2976 fps | 98.6% |
| Winchester StaBALL HD | <<locked>> | 84% | 54,955 psi | 86% | 2881 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 84% | 55,753 psi | 87% | 2822 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% | 48,428 psi | 76% | 2690 fps | 100% |
| Accurate 8700 | <<locked>> | 96% | 44,266 psi | 69% | 2690 fps | 95.6% |
| Accurate MAGPRO | <<locked>> | 80% | 50,763 psi | 80% | 2831 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 80% | 52,504 psi | 82% | 2818 fps | 100% |
| ADI AR 2213 | <<locked>> | 80% | 47,819 psi | 75% | 2772 fps | 99.3% |
| ADI AR 2217 | <<locked>> | 80% | 35,723 psi | 56% | 2520 fps | 96.8% |
| ADI AR 2218 | 87.9 gr | 90% | 44,150 psi | 69% | 2776 fps | 96.2% |
| ADI AR 2225 | <<locked>> | 80% | 33,083 psi | 52% | 2493 fps | 98.6% |
| Alliant Reloder-19 | <<locked>> | 80% | 52,257 psi | 82% | 2808 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 80% | 48,617 psi | 76% | 2776 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 47,297 psi | 74% | 2700 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 41,495 psi | 65% | 2654 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 86% | 42,583 psi | 67% | 2703 fps | 95.5% |
| Alliant Reloder-50 | <<locked>> | 90% | 42,873 psi | 67% | 2697 fps | 95% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 45,484 psi | 71% | 2680 fps | 96.7% |
| Bofors RP15 | <<locked>> | 80% | 45,194 psi | 71% | 2710 fps | 99.5% |
| Bofors RP30 | <<locked>> | 80% | 38,754 psi | 61% | 2598 fps | 97.8% |
| Bofors RP5 | <<locked>> | 80% | 48,617 psi | 76% | 2776 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 80% | 38,899 psi | 61% | 2595 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 80% | 50,212 psi | 79% | 2766 fps | 99.2% |
| Hodgdon H4831 SC | <<locked>> | 80% | 49,298 psi | 77% | 2749 fps | 99.1% |
| Hodgdon Retumbo | 73.8 gr | 80% | 40,582 psi | 64% | 2713 fps | 99.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,456 psi | 45% | 1693 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 50,604 psi | 79% | 2749 fps | 99.4% |
| IMR 7828 SSC | <<locked>> | 80% | 46,601 psi | 73% | 2756 fps | 99.2% |
| IMR 7977 Enduron | <<locked>> | 88% | 52,649 psi | 83% | 2749 fps | 95.2% |
| IMR 8133 Enduron | <<locked>> | 82% | 32,895 psi | 52% | 2470 fps | 95.4% |
| Lovex S071 | <<locked>> | 80% | 41,698 psi | 65% | 2572 fps | 100% |
| Norma 217 | <<locked>> | 80% | 31,038 psi | 49% | 2438 fps | 96.9% |
| Norma MRP | <<locked>> | 80% | 52,040 psi | 82% | 2841 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 47,282 psi | 74% | 2772 fps | 99.5% |
| Ramshot Magnum | <<locked>> | 80% | 42,859 psi | 67% | 2648 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,283 psi | 46% | 1732 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 40,335 psi | 63% | 2687 fps | 99.9% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 37,115 psi | 58% | 2575 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 52,924 psi | 83% | 2789 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 80% | 51,996 psi | 81% | 2802 fps | 100% |
| SNPE Vectan SP 13 | <<locked>> | 96% | 46,398 psi | 73% | 2707 fps | 95.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 51,648 psi | 81% | 2799 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 52,402 psi | 82% | 2772 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 45,977 psi | 72% | 2654 fps | 99.8% |
| Vihtavuori N170 | <<locked>> | 86% | 48,588 psi | 76% | 2720 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 80% | 52,185 psi | 82% | 2776 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 51,416 psi | 81% | 2844 fps | 99.5% |
| Vihtavuori N565 | <<locked>> | 80% | 43,091 psi | 68% | 2667 fps | 98.3% |
| Vihtavuori N568 | <<locked>> | 80% | 38,145 psi | 60% | 2598 fps | 95.5% |
| Vihtavuori N570 | 82.3 gr | 86% | 45,281 psi | 71% | 2779 fps | 95.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 47,224 psi | 74% | 2769 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 48,617 psi | 76% | 2713 fps | 99.8% |
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 49 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 160gr | Barnes Solid. ADI AR 2218 delivers the highest muzzle velocity at 2,992 fps; across all powders the maximum-charge window runs from 1,886 fps to 2,992 fps. Accurate 8700 gives the best case fill at 100 %, and 49 of the 49 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 1:9.0 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. Hodgdon Retumbo, ADI AR 2218, Vihtavuori N570 rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 160gr | Barnes Solid 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.