Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .287 | 175gr | Woodleigh PP SN 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 IMR 8133 Enduron.
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% | 56,492 psi | 89% | 2703 fps | 100% |
| Accurate 8700 | <<locked>> | 98% | 53,679 psi | 84% | 2756 fps | 98.8% |
| ADI AR 2213 | <<locked>> | 82% | 56,144 psi | 88% | 2802 fps | 100% |
| ADI AR 2217 | <<locked>> | 90% | 56,449 psi | 88% | 2795 fps | 100% |
| ADI AR 2218 | <<locked>> | 94% | 57,537 psi | 90% | 2923 fps | 99.8% |
| ADI AR 2225 | <<locked>> | 92% | 56,826 psi | 89% | 2815 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 82% | 56,782 psi | 89% | 2795 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 82% | 55,303 psi | 87% | 2703 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 86% | 56,507 psi | 89% | 2779 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 55,593 psi | 87% | 2835 fps | 99.3% |
| Alliant Reloder-50 | <<locked>> | 94% | 56,275 psi | 88% | 2838 fps | 99.1% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 56,217 psi | 88% | 2766 fps | 99.5% |
| Bofors RP15 | <<locked>> | 84% | 56,420 psi | 88% | 2792 fps | 100% |
| Bofors RP30 | <<locked>> | 88% | 56,434 psi | 88% | 2808 fps | 100% |
| Bofors RP5 | <<locked>> | 82% | 56,782 psi | 89% | 2795 fps | 100% |
| Hodgdon H1000 | <<locked>> | 88% | 57,609 psi | 90% | 2808 fps | 100% |
| Hodgdon H4831 SC | <<locked>> | 82% | 57,246 psi | 90% | 2776 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 56,666 psi | 89% | 2874 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,218 psi | 60% | 1824 fps | 100% |
| IMR 7828 SSC | <<locked>> | 82% | 54,940 psi | 86% | 2789 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 88% | 56,869 psi | 89% | 2730 fps | 97.3% |
| IMR 8133 Enduron | <<locked>> | 94% | 55,579 psi | 87% | 2805 fps | 100% |
| Lovex D100 | <<locked>> | 90% | 54,839 psi | 86% | 2720 fps | 95.9% |
| Lovex S071 | <<locked>> | 86% | 55,303 psi | 87% | 2687 fps | 100% |
| Norma 217 | <<locked>> | 94% | 57,377 psi | 90% | 2825 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 56,681 psi | 89% | 2812 fps | 100% |
| Ramshot LRT | <<locked>> | 94% | 56,855 psi | 89% | 2851 fps | 96.1% |
| Ramshot Magnum | <<locked>> | 84% | 55,056 psi | 86% | 2740 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,291 psi | 62% | 1864 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 57,522 psi | 90% | 2854 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 56,463 psi | 88% | 2831 fps | 100% |
| Shooters World 50 BMG | <<locked>> | 90% | 54,839 psi | 86% | 2720 fps | 95.9% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 55,230 psi | 87% | 2762 fps | 98.7% |
| Vihtavuori 20N29ᴾ | <<locked>> | 100% | 52,649 psi | 83% | 2736 fps | 97% |
| Vihtavuori N165 | <<locked>> | 84% | 57,159 psi | 90% | 2726 fps | 100% |
| Vihtavuori N170 | <<locked>> | 88% | 56,782 psi | 89% | 2766 fps | 98.5% |
| Vihtavuori N565 | <<locked>> | 84% | 54,375 psi | 85% | 2766 fps | 100% |
| Vihtavuori N568 | <<locked>> | 88% | 56,797 psi | 89% | 2838 fps | 99.9% |
| Vihtavuori N570 | <<locked>> | 88% | 54,462 psi | 85% | 2844 fps | 98.9% |
| Winchester StaBALL HD | <<locked>> | 82% | 57,174 psi | 90% | 2792 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 82% | 56,492 psi | 89% | 2730 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% | 52,779 psi | 83% | 2651 fps | 100% |
| Accurate 8700 | <<locked>> | 90% | 39,914 psi | 63% | 2513 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 80% | 52,359 psi | 82% | 2746 fps | 100% |
| ADI AR 2217 | <<locked>> | 80% | 39,537 psi | 62% | 2516 fps | 98.9% |
| ADI AR 2218 | 84.1 gr | 84% | 39,450 psi | 62% | 2585 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 80% | 36,912 psi | 58% | 2493 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 53,098 psi | 83% | 2743 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 51,822 psi | 81% | 2657 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 46,021 psi | 72% | 2628 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 82% | 41,089 psi | 64% | 2579 fps | 96.1% |
| Alliant Reloder-50 | <<locked>> | 86% | 41,684 psi | 65% | 2579 fps | 95.7% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 49,240 psi | 77% | 2657 fps | 98.5% |
| Bofors RP15 | <<locked>> | 80% | 49,472 psi | 78% | 2684 fps | 100% |
| Bofors RP30 | <<locked>> | 80% | 43,004 psi | 67% | 2589 fps | 99.4% |
| Bofors RP5 | <<locked>> | 80% | 53,098 psi | 83% | 2743 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 43,105 psi | 68% | 2582 fps | 99.7% |
| Hodgdon H4831 SC | <<locked>> | 80% | 53,505 psi | 84% | 2720 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 80% | 45,469 psi | 71% | 2700 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,660 psi | 45% | 1634 fps | 100% |
| IMR 7828 SSC | <<locked>> | 80% | 51,213 psi | 80% | 2733 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 84% | 49,980 psi | 78% | 2621 fps | 95.7% |
| IMR 8133 Enduron | 73.6 gr | 80% | 34,461 psi | 54% | 2418 fps | 97.1% |
| Lovex D100 | <<locked>> | 88% | 51,111 psi | 80% | 2661 fps | 95% |
| Lovex S071 | <<locked>> | 80% | 45,556 psi | 71% | 2543 fps | 100% |
| Norma 217 | <<locked>> | 80% | 35,201 psi | 55% | 2444 fps | 99.1% |
| Ramshot Grand | <<locked>> | 80% | 52,518 psi | 82% | 2753 fps | 100% |
| Ramshot LRT | <<locked>> | 92% | 52,881 psi | 83% | 2789 fps | 95.1% |
| Ramshot Magnum | <<locked>> | 80% | 47,543 psi | 75% | 2631 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,515 psi | 46% | 1673 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 45,513 psi | 71% | 2677 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 41,814 psi | 66% | 2585 fps | 98.3% |
| Shooters World 50 BMG | <<locked>> | 88% | 51,111 psi | 80% | 2661 fps | 95% |
| SNPE Vectan SP 13 | <<locked>> | 90% | 41,858 psi | 66% | 2533 fps | 95.5% |
| Vihtavuori 20N29 | <<locked>> | 96% | 45,600 psi | 71% | 2615 fps | 95% |
| Vihtavuori N165 | <<locked>> | 80% | 50,038 psi | 78% | 2625 fps | 100% |
| Vihtavuori N170 | <<locked>> | 80% | 43,337 psi | 68% | 2536 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 80% | 47,529 psi | 74% | 2654 fps | 99.6% |
| Vihtavuori N568 | <<locked>> | 80% | 42,569 psi | 67% | 2598 fps | 98% |
| Vihtavuori N570 | 78.5 gr | 80% | 40,756 psi | 64% | 2589 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 80% | 53,113 psi | 83% | 2740 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 52,808 psi | 83% | 2677 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 44 powders for 7 mm Rem. Ultra Mag. loaded with the .287 | 175gr | Woodleigh PP SN. ADI AR 2218 delivers the highest muzzle velocity at 2,923 fps; across all powders the maximum-charge window runs from 1,824 fps to 2,923 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 44 of the 44 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 175.0 gr projectile in 0.287" 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, Vihtavuori N570, IMR 8133 Enduron rank at the top here: for 7 mm Rem. Ultra Mag. with the .287 | 175gr | Woodleigh PP SN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Hodgdon 50BMG burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.