Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 177gr | RWS ID Classic bullet and 35 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2218, Alliant Reloder-50 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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 8700 | <<locked>> | 98% | 55,492 psi | 87% | 2772 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 82% | 57,566 psi | 90% | 2812 fps | 100% |
| ADI AR 2217 | <<locked>> | 88% | 54,099 psi | 85% | 2749 fps | 100% |
| ADI AR 2218 | <<locked>> | 92% | 55,042 psi | 86% | 2874 fps | 99.7% |
| ADI AR 2225 | <<locked>> | 90% | 54,592 psi | 86% | 2776 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 82% | 56,710 psi | 89% | 2710 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 84% | 54,201 psi | 85% | 2736 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 57,319 psi | 90% | 2851 fps | 99.6% |
| Alliant Reloder-50 | <<locked>> | 92% | 54,041 psi | 85% | 2792 fps | 99% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 57,348 psi | 90% | 2772 fps | 99.7% |
| Bofors RP15 | <<locked>> | 82% | 54,114 psi | 85% | 2746 fps | 100% |
| Bofors RP30 | <<locked>> | 86% | 54,302 psi | 85% | 2766 fps | 100% |
| Hodgdon H1000 | <<locked>> | 86% | 55,230 psi | 87% | 2762 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 84% | 54,331 psi | 85% | 2828 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,319 psi | 60% | 1821 fps | 100% |
| Hodgdon US 869 | <<locked>> | 96% | 55,898 psi | 88% | 2772 fps | 96% |
| IMR 7828 SSC | <<locked>> | 82% | 56,405 psi | 88% | 2799 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 86% | 54,476 psi | 85% | 2687 fps | 97% |
| IMR 8133 Enduron | <<locked>> | 94% | 57,406 psi | 90% | 2818 fps | 100% |
| Lovex D100 | <<locked>> | 90% | 56,289 psi | 88% | 2736 fps | 96.5% |
| Lovex S071 | <<locked>> | 86% | 56,463 psi | 88% | 2690 fps | 100% |
| Norma 217 | <<locked>> | 92% | 55,361 psi | 87% | 2785 fps | 100% |
| Ramshot Magnum | <<locked>> | 84% | 56,637 psi | 89% | 2749 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,378 psi | 62% | 1864 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 55,056 psi | 86% | 2808 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 86% | 54,012 psi | 85% | 2785 fps | 100% |
| Shooters World 50 BMG | <<locked>> | 90% | 56,289 psi | 88% | 2736 fps | 96.5% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 56,985 psi | 89% | 2779 fps | 99.1% |
| Vihtavuori 20N29ᴾ | <<locked>> | 100% | 54,360 psi | 85% | 2753 fps | 97.6% |
| Vihtavuori 24N41 | <<locked>> | 94% | 56,376 psi | 88% | 2782 fps | 96% |
| Vihtavuori N165 | <<locked>> | 82% | 54,737 psi | 86% | 2684 fps | 100% |
| Vihtavuori N170 | <<locked>> | 86% | 54,331 psi | 85% | 2717 fps | 98.3% |
| Vihtavuori N565 | <<locked>> | 84% | 55,695 psi | 87% | 2772 fps | 100% |
| Vihtavuori N568 | <<locked>> | 86% | 54,360 psi | 85% | 2789 fps | 99.8% |
| Vihtavuori N570 | <<locked>> | 88% | 56,072 psi | 88% | 2858 fps | 99.3% |
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 8700 | <<locked>> | 90% | 41,234 psi | 65% | 2530 fps | 96% |
| ADI AR 2213 | <<locked>> | 80% | 53,737 psi | 84% | 2756 fps | 100% |
| ADI AR 2217 | <<locked>> | 80% | 40,611 psi | 64% | 2526 fps | 99.2% |
| ADI AR 2218 | 83.4 gr | 82% | 37,797 psi | 59% | 2536 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 80% | 38,130 psi | 60% | 2507 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 53,055 psi | 83% | 2664 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 47,210 psi | 74% | 2635 fps | 100% |
| Alliant Reloder-33 | 82.8 gr | 80% | 39,291 psi | 62% | 2530 fps | 95.7% |
| Alliant Reloder-50 | 86.7 gr | 84% | 40,059 psi | 63% | 2533 fps | 95.3% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 50,299 psi | 79% | 2664 fps | 98.8% |
| Bofors RP15 | <<locked>> | 80% | 50,633 psi | 79% | 2694 fps | 100% |
| Bofors RP30 | <<locked>> | 80% | 44,121 psi | 69% | 2598 fps | 99.6% |
| Hodgdon H1000 | <<locked>> | 80% | 44,411 psi | 70% | 2595 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 80% | 47,007 psi | 74% | 2717 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,732 psi | 45% | 1631 fps | 100% |
| Hodgdon US 869 | <<locked>> | 94% | 52,127 psi | 82% | 2710 fps | 95% |
| IMR 7828 SSC | <<locked>> | 80% | 52,634 psi | 82% | 2743 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 82% | 47,790 psi | 75% | 2575 fps | 95.3% |
| IMR 8133 Enduron | <<locked>> | 80% | 35,505 psi | 56% | 2431 fps | 97.7% |
| Lovex D100 | <<locked>> | 88% | 52,504 psi | 82% | 2677 fps | 95.6% |
| Lovex S071 | <<locked>> | 80% | 46,659 psi | 73% | 2549 fps | 100% |
| Norma 217 | <<locked>> | 80% | 36,332 psi | 57% | 2461 fps | 99.5% |
| Ramshot Magnum | <<locked>> | 80% | 48,878 psi | 77% | 2641 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,588 psi | 46% | 1670 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 47,166 psi | 74% | 2690 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 43,105 psi | 68% | 2598 fps | 98.7% |
| Shooters World 50 BMG | <<locked>> | 88% | 52,504 psi | 82% | 2677 fps | 95.6% |
| SNPE Vectan SP 13 | <<locked>> | 88% | 40,306 psi | 63% | 2493 fps | 95.2% |
| Vihtavuori 20N29 | <<locked>> | 96% | 47,050 psi | 74% | 2635 fps | 95.7% |
| Vihtavuori 24N41 | <<locked>> | 92% | 52,475 psi | 82% | 2720 fps | 95% |
| Vihtavuori N165 | <<locked>> | 80% | 51,082 psi | 80% | 2631 fps | 100% |
| Vihtavuori N170 | <<locked>> | 80% | 44,411 psi | 70% | 2549 fps | 95.9% |
| Vihtavuori N565 | <<locked>> | 80% | 48,646 psi | 76% | 2664 fps | 99.8% |
| Vihtavuori N568 | <<locked>> | 80% | 43,845 psi | 69% | 2612 fps | 98.4% |
| Vihtavuori N570 | <<locked>> | 80% | 42,018 psi | 66% | 2605 fps | 96.2% |
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 35 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 177gr | RWS ID Classic. ADI AR 2218 delivers the highest muzzle velocity at 2,874 fps; across all powders the maximum-charge window runs from 1,821 fps to 2,874 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 35 of the 35 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 177.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori 20N29 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, Alliant Reloder-50, Alliant Reloder-33 rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 177gr | RWS ID Classic 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.