Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 165gr | Remington SP Core-Lokt 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-50.
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% | 55,622 psi | 87% | 2756 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 56,739 psi | 89% | 2861 fps | 99% |
| ADI AR 2213 | <<locked>> | 82% | 55,187 psi | 86% | 2854 fps | 100% |
| ADI AR 2217 | <<locked>> | 90% | 55,332 psi | 87% | 2844 fps | 100% |
| ADI AR 2218 | <<locked>> | 94% | 56,507 psi | 89% | 2969 fps | 99.5% |
| ADI AR 2225 | <<locked>> | 92% | 55,492 psi | 87% | 2864 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 82% | 55,825 psi | 87% | 2848 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 82% | 54,244 psi | 85% | 2759 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 86% | 55,361 psi | 87% | 2831 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 54,505 psi | 85% | 2881 fps | 98.9% |
| Alliant Reloder-50 | <<locked>> | 94% | 55,013 psi | 86% | 2877 fps | 98.7% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 55,376 psi | 87% | 2815 fps | 99.1% |
| Bofors RP15 | <<locked>> | 84% | 55,492 psi | 87% | 2844 fps | 100% |
| Bofors RP30 | <<locked>> | 88% | 55,419 psi | 87% | 2854 fps | 100% |
| Bofors RP5 | <<locked>> | 82% | 55,825 psi | 87% | 2848 fps | 100% |
| Hodgdon H1000 | <<locked>> | 88% | 56,492 psi | 89% | 2858 fps | 100% |
| Hodgdon H4831 | <<locked>> | 82% | 57,348 psi | 90% | 2841 fps | 100% |
| Hodgdon H4831 SC | <<locked>> | 82% | 56,376 psi | 88% | 2828 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 86% | 55,332 psi | 87% | 2923 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,189 psi | 60% | 1877 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 57,145 psi | 90% | 2818 fps | 100% |
| IMR 7828 SSC | <<locked>> | 82% | 53,998 psi | 85% | 2841 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 88% | 56,086 psi | 88% | 2779 fps | 96.7% |
| IMR 8133 Enduron | <<locked>> | 94% | 54,549 psi | 85% | 2854 fps | 100% |
| Lovex S071 | <<locked>> | 86% | 54,273 psi | 85% | 2740 fps | 100% |
| Norma 217 | <<locked>> | 94% | 56,202 psi | 88% | 2874 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 55,492 psi | 87% | 2861 fps | 100% |
| Ramshot Magnum | <<locked>> | 84% | 54,012 psi | 85% | 2789 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,218 psi | 61% | 1919 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 56,362 psi | 88% | 2904 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 55,448 psi | 87% | 2881 fps | 99.9% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 54,331 psi | 85% | 2805 fps | 98.2% |
| Vihtavuori 20N29ᴾ | <<locked>> | 100% | 51,561 psi | 81% | 2772 fps | 96.2% |
| Vihtavuori N165 | <<locked>> | 84% | 56,217 psi | 88% | 2779 fps | 100% |
| Vihtavuori N170 | <<locked>> | 88% | 55,927 psi | 88% | 2812 fps | 98% |
| Vihtavuori N565 | <<locked>> | 86% | 57,101 psi | 89% | 2867 fps | 100% |
| Vihtavuori N568 | <<locked>> | 88% | 55,738 psi | 87% | 2884 fps | 99.7% |
| Vihtavuori N570 | <<locked>> | 90% | 57,377 psi | 90% | 2949 fps | 99% |
| Winchester StaBALL HD | <<locked>> | 82% | 55,869 psi | 88% | 2844 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 82% | 55,782 psi | 87% | 2785 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% | 51,822 psi | 81% | 2703 fps | 100% |
| Accurate 8700 | <<locked>> | 92% | 42,076 psi | 66% | 2608 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 80% | 51,517 psi | 81% | 2795 fps | 99.9% |
| ADI AR 2217 | <<locked>> | 80% | 38,696 psi | 61% | 2556 fps | 98.3% |
| ADI AR 2218 | 88 gr | 86% | 41,669 psi | 65% | 2687 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 80% | 36,172 psi | 57% | 2530 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 80% | 52,243 psi | 82% | 2795 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 50,894 psi | 80% | 2713 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 45,020 psi | 71% | 2674 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 82% | 40,161 psi | 63% | 2612 fps | 95.1% |
| Alliant Reloder-50 | 91.4 gr | 88% | 43,976 psi | 69% | 2677 fps | 95.9% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 48,457 psi | 76% | 2703 fps | 98% |
| Bofors RP15 | <<locked>> | 80% | 48,602 psi | 76% | 2733 fps | 99.9% |
| Bofors RP30 | <<locked>> | 80% | 42,047 psi | 66% | 2628 fps | 99% |
| Bofors RP5 | <<locked>> | 80% | 52,243 psi | 82% | 2795 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 42,279 psi | 66% | 2628 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 80% | 53,664 psi | 84% | 2789 fps | 99.8% |
| Hodgdon H4831 SC | <<locked>> | 80% | 52,721 psi | 83% | 2772 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 80% | 44,498 psi | 70% | 2749 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,674 psi | 45% | 1683 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 53,635 psi | 84% | 2766 fps | 99.8% |
| IMR 7828 SSC | <<locked>> | 80% | 50,372 psi | 79% | 2782 fps | 99.8% |
| IMR 7977 Enduron | <<locked>> | 86% | 52,562 psi | 82% | 2720 fps | 95.8% |
| IMR 8133 Enduron | <<locked>> | 80% | 33,663 psi | 53% | 2451 fps | 96.2% |
| Lovex S071 | <<locked>> | 80% | 44,831 psi | 70% | 2592 fps | 100% |
| Norma 217 | <<locked>> | 80% | 34,316 psi | 54% | 2480 fps | 98.5% |
| Ramshot Grand | <<locked>> | 80% | 51,488 psi | 81% | 2802 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 46,586 psi | 73% | 2674 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,501 psi | 46% | 1726 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 44,556 psi | 70% | 2720 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 40,814 psi | 64% | 2618 fps | 97.5% |
| SNPE Vectan SP 13 | <<locked>> | 92% | 44,092 psi | 69% | 2628 fps | 95.7% |
| Vihtavuori 20N29 | <<locked>> | 98% | 47,979 psi | 75% | 2710 fps | 95.2% |
| Vihtavuori N165 | <<locked>> | 80% | 49,153 psi | 77% | 2674 fps | 100% |
| Vihtavuori N170 | <<locked>> | 82% | 45,614 psi | 71% | 2635 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 80% | 46,499 psi | 73% | 2694 fps | 99.2% |
| Vihtavuori N568 | <<locked>> | 80% | 41,684 psi | 65% | 2635 fps | 97.3% |
| Vihtavuori N570 | 82.2 gr | 82% | 42,888 psi | 67% | 2690 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 80% | 51,735 psi | 81% | 2789 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 52,011 psi | 82% | 2730 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 | 165gr | Remington SP Core-Lokt. ADI AR 2218 delivers the highest muzzle velocity at 2,969 fps; across all powders the maximum-charge window runs from 1,877 fps to 2,969 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 165.0 gr projectile in 0.284" calls for a 1:12.5 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-50 rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 165gr | Remington SP Core-Lokt 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.