Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 170gr | Geco SOFTPOINT bullet and 38 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-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% | 56,666 psi | 89% | 2736 fps | 100% |
| Accurate 8700 | <<locked>> | 98% | 54,172 psi | 85% | 2789 fps | 98.8% |
| ADI AR 2213 | <<locked>> | 82% | 56,536 psi | 89% | 2841 fps | 100% |
| ADI AR 2217 | <<locked>> | 90% | 56,811 psi | 89% | 2831 fps | 100% |
| ADI AR 2218 | <<locked>> | 92% | 53,766 psi | 84% | 2894 fps | 99.3% |
| ADI AR 2225 | <<locked>> | 92% | 57,101 psi | 89% | 2851 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 82% | 57,159 psi | 90% | 2835 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 82% | 55,550 psi | 87% | 2740 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 86% | 56,797 psi | 89% | 2815 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 56,057 psi | 88% | 2871 fps | 99.3% |
| Alliant Reloder-50 | <<locked>> | 94% | 56,840 psi | 89% | 2874 fps | 99.1% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 56,507 psi | 89% | 2802 fps | 99.4% |
| Bofors RP15 | <<locked>> | 84% | 56,797 psi | 89% | 2828 fps | 100% |
| Bofors RP30 | <<locked>> | 88% | 56,840 psi | 89% | 2844 fps | 100% |
| Bofors RP5 | <<locked>> | 82% | 57,159 psi | 90% | 2835 fps | 100% |
| Hodgdon H1000 | <<locked>> | 86% | 54,027 psi | 85% | 2792 fps | 100% |
| Hodgdon H4831 SC | <<locked>> | 82% | 57,580 psi | 90% | 2815 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 56,985 psi | 89% | 2910 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,130 psi | 60% | 1854 fps | 100% |
| IMR 7828 SSC | <<locked>> | 82% | 55,347 psi | 87% | 2828 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 88% | 57,203 psi | 90% | 2766 fps | 97.2% |
| IMR 8133 Enduron | <<locked>> | 94% | 56,043 psi | 88% | 2841 fps | 100% |
| Lovex S071 | <<locked>> | 86% | 55,506 psi | 87% | 2720 fps | 100% |
| Norma 217 | <<locked>> | 92% | 53,983 psi | 85% | 2808 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 57,014 psi | 89% | 2851 fps | 100% |
| Ramshot Magnum | <<locked>> | 84% | 55,434 psi | 87% | 2776 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,320 psi | 62% | 1896 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 53,679 psi | 84% | 2831 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 57,058 psi | 89% | 2871 fps | 100% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 55,796 psi | 87% | 2799 fps | 98.7% |
| Vihtavuori 20N29ᴾ | <<locked>> | 100% | 53,040 psi | 83% | 2769 fps | 96.9% |
| Vihtavuori N165 | <<locked>> | 84% | 57,464 psi | 90% | 2762 fps | 100% |
| Vihtavuori N170 | <<locked>> | 88% | 57,217 psi | 90% | 2802 fps | 98.5% |
| Vihtavuori N565 | <<locked>> | 84% | 54,810 psi | 86% | 2802 fps | 100% |
| Vihtavuori N568 | <<locked>> | 88% | 57,217 psi | 90% | 2874 fps | 99.9% |
| Vihtavuori N570 | <<locked>> | 88% | 54,911 psi | 86% | 2877 fps | 98.9% |
| Winchester StaBALL HD | <<locked>> | 82% | 57,493 psi | 90% | 2828 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 82% | 56,811 psi | 89% | 2769 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% | 53,055 psi | 83% | 2687 fps | 100% |
| Accurate 8700 | <<locked>> | 90% | 40,248 psi | 63% | 2546 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 80% | 52,591 psi | 82% | 2782 fps | 100% |
| ADI AR 2217 | <<locked>> | 80% | 39,798 psi | 62% | 2546 fps | 98.8% |
| ADI AR 2218 | 86.1 gr | 84% | 39,711 psi | 62% | 2615 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 80% | 37,115 psi | 58% | 2520 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 53,301 psi | 84% | 2776 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 51,967 psi | 81% | 2690 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 46,296 psi | 73% | 2661 fps | 100% |
| Alliant Reloder-33 | 85.6 gr | 82% | 41,408 psi | 65% | 2612 fps | 96% |
| Alliant Reloder-50 | <<locked>> | 86% | 42,061 psi | 66% | 2608 fps | 95.6% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 49,487 psi | 78% | 2690 fps | 98.4% |
| Bofors RP15 | <<locked>> | 80% | 49,763 psi | 78% | 2720 fps | 100% |
| Bofors RP30 | <<locked>> | 80% | 43,250 psi | 68% | 2618 fps | 99.3% |
| Bofors RP5 | <<locked>> | 80% | 53,301 psi | 84% | 2776 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 43,468 psi | 68% | 2618 fps | 99.7% |
| Hodgdon H4831 SC | <<locked>> | 80% | 53,722 psi | 84% | 2756 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 80% | 45,730 psi | 72% | 2733 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,645 psi | 45% | 1660 fps | 100% |
| IMR 7828 SSC | <<locked>> | 80% | 51,474 psi | 81% | 2769 fps | 99.9% |
| IMR 7977 Enduron | <<locked>> | 84% | 50,256 psi | 79% | 2654 fps | 95.6% |
| IMR 8133 Enduron | <<locked>> | 80% | 34,592 psi | 54% | 2444 fps | 96.9% |
| Lovex S071 | <<locked>> | 80% | 45,745 psi | 72% | 2575 fps | 100% |
| Norma 217 | <<locked>> | 80% | 35,331 psi | 55% | 2474 fps | 99% |
| Ramshot Grand | <<locked>> | 80% | 52,881 psi | 83% | 2792 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 47,877 psi | 75% | 2664 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,631 psi | 46% | 1703 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 45,963 psi | 72% | 2713 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 42,032 psi | 66% | 2615 fps | 98.1% |
| SNPE Vectan SP 13 | <<locked>> | 90% | 42,250 psi | 66% | 2566 fps | 95.4% |
| Vihtavuori 20N29 | <<locked>> | 98% | 49,371 psi | 77% | 2710 fps | 95.9% |
| Vihtavuori N165 | <<locked>> | 80% | 50,270 psi | 79% | 2657 fps | 100% |
| Vihtavuori N170 | <<locked>> | 80% | 43,598 psi | 68% | 2569 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 80% | 47,703 psi | 75% | 2687 fps | 99.5% |
| Vihtavuori N568 | <<locked>> | 80% | 42,873 psi | 67% | 2628 fps | 97.9% |
| Vihtavuori N570 | 80.4 gr | 80% | 41,046 psi | 64% | 2618 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 53,388 psi | 84% | 2776 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 53,156 psi | 83% | 2717 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 38 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 170gr | Geco SOFTPOINT. Hodgdon Retumbo delivers the highest muzzle velocity at 2,910 fps; across all powders the maximum-charge window runs from 1,854 fps to 2,910 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 38 of the 38 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 170.0 gr projectile in 0.284" calls for a 1:13.0 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, Vihtavuori N570, Alliant Reloder-33 rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 170gr | Geco SOFTPOINT 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.