Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 156gr | Norma ORYX 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 ReloadSwiss RS 80.
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% | 53,954 psi | 85% | 2795 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 54,824 psi | 86% | 2884 fps | 98.3% |
| Accurate MAGPRO | <<locked>> | 82% | 57,043 psi | 89% | 2956 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 84% | 57,421 psi | 90% | 2949 fps | 100% |
| ADI AR 2217 | <<locked>> | 92% | 57,406 psi | 90% | 2936 fps | 100% |
| ADI AR 2218 | <<locked>> | 94% | 54,476 psi | 85% | 2995 fps | 98.9% |
| ADI AR 2225 | <<locked>> | 94% | 57,493 psi | 90% | 2953 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 82% | 54,317 psi | 85% | 2887 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 84% | 56,405 psi | 88% | 2851 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 88% | 57,609 psi | 90% | 2927 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 56,739 psi | 89% | 2972 fps | 98.9% |
| Alliant Reloder-50 | <<locked>> | 96% | 57,334 psi | 90% | 2966 fps | 98.7% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 57,566 psi | 90% | 2907 fps | 99.1% |
| Bofors RP15 | <<locked>> | 86% | 57,580 psi | 90% | 2936 fps | 100% |
| Bofors RP30 | <<locked>> | 90% | 57,580 psi | 90% | 2949 fps | 100% |
| Bofors RP5 | <<locked>> | 82% | 54,317 psi | 85% | 2887 fps | 100% |
| Hodgdon H1000 | <<locked>> | 88% | 54,824 psi | 86% | 2897 fps | 100% |
| Hodgdon H4831 | <<locked>> | 82% | 55,898 psi | 88% | 2881 fps | 99.8% |
| Hodgdon H4831 SC | <<locked>> | 82% | 54,911 psi | 86% | 2867 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 88% | 57,435 psi | 90% | 3018 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,971 psi | 60% | 1923 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 55,854 psi | 88% | 2861 fps | 99.8% |
| IMR 7828 SSC | <<locked>> | 84% | 56,144 psi | 88% | 2936 fps | 100% |
| IMR 8133 Enduron | <<locked>> | 96% | 56,565 psi | 89% | 2943 fps | 100% |
| Lovex S071 | <<locked>> | 88% | 56,231 psi | 88% | 2825 fps | 100% |
| Norma 217 | <<locked>> | 94% | 54,346 psi | 85% | 2910 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 53,693 psi | 84% | 2897 fps | 100% |
| Ramshot Magnum | <<locked>> | 86% | 56,391 psi | 88% | 2884 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,117 psi | 61% | 1972 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 54,186 psi | 85% | 2940 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 53,606 psi | 84% | 2907 fps | 99.6% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 56,405 psi | 88% | 2894 fps | 98.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 57,479 psi | 90% | 2910 fps | 100% |
| Vihtavuori N165 | <<locked>> | 84% | 54,781 psi | 86% | 2818 fps | 100% |
| Vihtavuori N170 | <<locked>> | 88% | 54,331 psi | 85% | 2841 fps | 97.2% |
| Vihtavuori N560 | <<locked>> | 82% | 57,638 psi | 90% | 2966 fps | 99.9% |
| Vihtavuori N565 | <<locked>> | 86% | 55,550 psi | 87% | 2907 fps | 99.9% |
| Vihtavuori N568 | <<locked>> | 88% | 53,824 psi | 84% | 2913 fps | 99.3% |
| Vihtavuori N570 | <<locked>> | 90% | 55,521 psi | 87% | 2982 fps | 98.4% |
| Winchester StaBALL HD | <<locked>> | 82% | 53,867 psi | 84% | 2884 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 82% | 54,143 psi | 85% | 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% | 50,488 psi | 79% | 2743 fps | 100% |
| Accurate 8700 | <<locked>> | 94% | 43,627 psi | 68% | 2690 fps | 95.4% |
| Accurate MAGPRO | <<locked>> | 80% | 53,200 psi | 83% | 2894 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 80% | 49,879 psi | 78% | 2831 fps | 99.5% |
| ADI AR 2217 | <<locked>> | 80% | 37,362 psi | 59% | 2579 fps | 97.4% |
| ADI AR 2218 | 90.8 gr | 88% | 43,366 psi | 68% | 2776 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 80% | 34,766 psi | 54% | 2552 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 50,647 psi | 79% | 2831 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 49,342 psi | 77% | 2753 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 43,598 psi | 68% | 2710 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 84% | 41,858 psi | 66% | 2700 fps | 95.1% |
| Alliant Reloder-50 | <<locked>> | 90% | 45,672 psi | 72% | 2766 fps | 95.9% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 47,224 psi | 74% | 2736 fps | 97.2% |
| Bofors RP15 | <<locked>> | 80% | 47,094 psi | 74% | 2766 fps | 99.7% |
| Bofors RP30 | <<locked>> | 80% | 40,712 psi | 64% | 2657 fps | 98.3% |
| Bofors RP5 | <<locked>> | 80% | 50,647 psi | 79% | 2831 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 40,741 psi | 64% | 2654 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 80% | 52,112 psi | 82% | 2825 fps | 99.5% |
| Hodgdon H4831 SC | <<locked>> | 80% | 51,213 psi | 80% | 2808 fps | 99.4% |
| Hodgdon Retumbo | <<locked>> | 80% | 42,728 psi | 67% | 2772 fps | 99.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,558 psi | 45% | 1729 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 52,417 psi | 82% | 2805 fps | 99.6% |
| IMR 7828 SSC | <<locked>> | 80% | 48,718 psi | 76% | 2815 fps | 99.4% |
| IMR 8133 Enduron | <<locked>> | 82% | 34,737 psi | 54% | 2530 fps | 96.1% |
| Lovex S071 | <<locked>> | 80% | 43,482 psi | 68% | 2628 fps | 100% |
| Norma 217 | <<locked>> | 80% | 32,880 psi | 52% | 2497 fps | 97.5% |
| Ramshot Grand | <<locked>> | 80% | 49,806 psi | 78% | 2835 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 80% | 45,020 psi | 71% | 2707 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,370 psi | 46% | 1768 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 42,801 psi | 67% | 2749 fps | 100% |
| ReloadSwiss RS 80 | 84.1 gr | 80% | 39,407 psi | 62% | 2641 fps | 96.5% |
| SNPE Vectan SP 13 | <<locked>> | 94% | 45,629 psi | 72% | 2710 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 53,780 psi | 84% | 2858 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 47,863 psi | 75% | 2713 fps | 99.9% |
| Vihtavuori N170 | <<locked>> | 84% | 47,442 psi | 74% | 2723 fps | 95.5% |
| Vihtavuori N560 | <<locked>> | 80% | 53,780 psi | 84% | 2907 fps | 99.7% |
| Vihtavuori N565 | <<locked>> | 80% | 45,121 psi | 71% | 2726 fps | 98.7% |
| Vihtavuori N568 | <<locked>> | 80% | 40,234 psi | 63% | 2657 fps | 96.2% |
| Vihtavuori N570 | 84.9 gr | 84% | 44,498 psi | 70% | 2779 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 80% | 49,922 psi | 78% | 2828 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 50,647 psi | 79% | 2769 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 41 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 156gr | Norma ORYX. Hodgdon Retumbo delivers the highest muzzle velocity at 3,018 fps; across all powders the maximum-charge window runs from 1,923 fps to 3,018 fps. Accurate 8700 gives the best case fill at 100 %, and 41 of the 41 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 156.0 gr projectile in 0.284" calls for a 1:13.5 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, ReloadSwiss RS 80 rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 156gr | Norma ORYX 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.