Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 177gr | Brenneke TIG bullet and 34 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.
A valid access license is required to use the Personalized Load Calculator.
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 3100 | <<locked>> | 82% | 57,595 psi | 90% | 2703 fps | 100% |
| Accurate 8700 | <<locked>> | 98% | 55,288 psi | 87% | 2769 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 82% | 57,508 psi | 90% | 2812 fps | 100% |
| ADI AR 2217 | <<locked>> | 88% | 53,867 psi | 84% | 2746 fps | 100% |
| ADI AR 2218 | <<locked>> | 92% | 54,998 psi | 86% | 2877 fps | 99.7% |
| ADI AR 2225 | <<locked>> | 90% | 54,346 psi | 85% | 2772 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 82% | 56,449 psi | 88% | 2707 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 84% | 54,114 psi | 85% | 2736 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 57,101 psi | 89% | 2848 fps | 99.6% |
| Alliant Reloder-50 | <<locked>> | 92% | 53,766 psi | 84% | 2789 fps | 98.9% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 57,276 psi | 90% | 2772 fps | 99.7% |
| Bofors RP15 | <<locked>> | 84% | 57,725 psi | 90% | 2799 fps | 100% |
| Bofors RP30 | <<locked>> | 86% | 54,056 psi | 85% | 2762 fps | 100% |
| Hodgdon H1000 | <<locked>> | 86% | 54,984 psi | 86% | 2759 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 84% | 54,244 psi | 85% | 2828 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,232 psi | 60% | 1821 fps | 100% |
| IMR 7828 SSC | <<locked>> | 82% | 56,347 psi | 88% | 2799 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 86% | 54,476 psi | 85% | 2687 fps | 97% |
| IMR 8133 Enduron | <<locked>> | 94% | 57,130 psi | 90% | 2815 fps | 100% |
| Lovex D100 | <<locked>> | 90% | 56,275 psi | 88% | 2736 fps | 96.5% |
| Lovex S071 | <<locked>> | 86% | 56,391 psi | 88% | 2690 fps | 100% |
| Norma 217 | <<locked>> | 92% | 55,114 psi | 86% | 2782 fps | 100% |
| Ramshot Magnum | <<locked>> | 84% | 56,608 psi | 89% | 2749 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,291 psi | 62% | 1860 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 54,810 psi | 86% | 2805 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 86% | 53,983 psi | 85% | 2785 fps | 100% |
| Shooters World 50 BMG | <<locked>> | 90% | 56,275 psi | 88% | 2736 fps | 96.5% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 56,797 psi | 89% | 2776 fps | 99.1% |
| Vihtavuori 20N29ᴾ | <<locked>> | 100% | 54,172 psi | 85% | 2753 fps | 97.5% |
| Vihtavuori N165 | <<locked>> | 82% | 54,505 psi | 85% | 2680 fps | 100% |
| Vihtavuori N170 | <<locked>> | 86% | 54,288 psi | 85% | 2717 fps | 98.3% |
| Vihtavuori N565 | <<locked>> | 84% | 55,651 psi | 87% | 2772 fps | 100% |
| Vihtavuori N568 | <<locked>> | 86% | 54,331 psi | 85% | 2792 fps | 99.8% |
| Vihtavuori N570 | <<locked>> | 88% | 56,014 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 3100 | <<locked>> | 80% | 53,882 psi | 84% | 2657 fps | 100% |
| Accurate 8700 | <<locked>> | 90% | 41,176 psi | 65% | 2530 fps | 95.9% |
| ADI AR 2213 | <<locked>> | 80% | 53,693 psi | 84% | 2756 fps | 100% |
| ADI AR 2217 | <<locked>> | 80% | 40,567 psi | 64% | 2526 fps | 99.2% |
| ADI AR 2218 | 83.2 gr | 82% | 37,623 psi | 59% | 2533 fps | 95% |
| ADI AR 2225 | <<locked>> | 80% | 37,942 psi | 59% | 2503 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 52,968 psi | 83% | 2661 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 47,152 psi | 74% | 2635 fps | 100% |
| Alliant Reloder-33 | 82.7 gr | 80% | 39,247 psi | 62% | 2530 fps | 95.6% |
| Alliant Reloder-50 | 86.6 gr | 84% | 40,016 psi | 63% | 2533 fps | 95.3% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 50,285 psi | 79% | 2664 fps | 98.8% |
| Bofors RP15 | <<locked>> | 80% | 50,589 psi | 79% | 2694 fps | 100% |
| Bofors RP30 | <<locked>> | 80% | 44,063 psi | 69% | 2595 fps | 99.6% |
| Hodgdon H1000 | <<locked>> | 80% | 44,338 psi | 69% | 2595 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 80% | 46,775 psi | 73% | 2710 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,790 psi | 45% | 1631 fps | 100% |
| IMR 7828 SSC | <<locked>> | 80% | 52,591 psi | 82% | 2743 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 82% | 47,776 psi | 75% | 2575 fps | 95.3% |
| IMR 8133 Enduron | <<locked>> | 80% | 35,447 psi | 56% | 2431 fps | 97.7% |
| Lovex D100 | <<locked>> | 88% | 52,315 psi | 82% | 2674 fps | 95.6% |
| Lovex S071 | <<locked>> | 80% | 46,615 psi | 73% | 2549 fps | 100% |
| Norma 217 | <<locked>> | 80% | 36,260 psi | 57% | 2457 fps | 99.4% |
| Ramshot Magnum | <<locked>> | 80% | 48,849 psi | 77% | 2638 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,646 psi | 46% | 1670 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 46,920 psi | 74% | 2687 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 43,062 psi | 67% | 2598 fps | 98.7% |
| Shooters World 50 BMG | <<locked>> | 88% | 52,315 psi | 82% | 2674 fps | 95.6% |
| SNPE Vectan SP 13 | <<locked>> | 88% | 40,277 psi | 63% | 2490 fps | 95.1% |
| Vihtavuori 20N29 | <<locked>> | 96% | 47,050 psi | 74% | 2631 fps | 95.7% |
| Vihtavuori N165 | <<locked>> | 80% | 51,039 psi | 80% | 2631 fps | 100% |
| Vihtavuori N170 | <<locked>> | 80% | 44,222 psi | 69% | 2546 fps | 95.9% |
| Vihtavuori N565 | <<locked>> | 80% | 48,588 psi | 76% | 2661 fps | 99.8% |
| Vihtavuori N568 | <<locked>> | 80% | 43,787 psi | 69% | 2608 fps | 98.4% |
| Vihtavuori N570 | <<locked>> | 80% | 41,829 psi | 66% | 2602 fps | 96.1% |
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 34 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 177gr | Brenneke TIG. ADI AR 2218 delivers the highest muzzle velocity at 2,877 fps; across all powders the maximum-charge window runs from 1,821 fps to 2,877 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 34 of the 34 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 | Brenneke TIG 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.