Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .287 | 160gr | Woodleigh PP SN bullet and 42 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.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 82% | 54,056 psi | 85% | 2769 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 54,708 psi | 86% | 2861 fps | 98.4% |
| Accurate MAGPRO | <<locked>> | 82% | 57,087 psi | 89% | 2930 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 84% | 57,406 psi | 90% | 2923 fps | 100% |
| ADI AR 2217 | <<locked>> | 92% | 57,348 psi | 90% | 2907 fps | 100% |
| ADI AR 2218 | <<locked>> | 94% | 54,259 psi | 85% | 2966 fps | 99% |
| ADI AR 2225 | <<locked>> | 94% | 57,537 psi | 90% | 2930 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 82% | 54,230 psi | 85% | 2861 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 84% | 56,318 psi | 88% | 2822 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 88% | 57,450 psi | 90% | 2897 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 56,507 psi | 89% | 2943 fps | 99% |
| Alliant Reloder-50 | <<locked>> | 96% | 57,174 psi | 90% | 2943 fps | 98.8% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 57,508 psi | 90% | 2881 fps | 99.2% |
| Bofors RP15 | <<locked>> | 86% | 57,580 psi | 90% | 2910 fps | 100% |
| Bofors RP30 | <<locked>> | 90% | 57,479 psi | 90% | 2923 fps | 100% |
| Bofors RP5 | <<locked>> | 82% | 54,230 psi | 85% | 2861 fps | 100% |
| Hodgdon H1000 | <<locked>> | 88% | 54,723 psi | 86% | 2867 fps | 100% |
| Hodgdon H4831 | <<locked>> | 82% | 55,825 psi | 87% | 2854 fps | 99.8% |
| Hodgdon H4831 SC | <<locked>> | 82% | 54,868 psi | 86% | 2841 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 88% | 57,319 psi | 90% | 2989 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,000 psi | 60% | 1900 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 55,767 psi | 87% | 2831 fps | 99.9% |
| IMR 7828 SSC | <<locked>> | 84% | 56,115 psi | 88% | 2910 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 88% | 54,752 psi | 86% | 2785 fps | 96% |
| IMR 8133 Enduron | <<locked>> | 96% | 56,362 psi | 88% | 2917 fps | 100% |
| Lovex S071 | <<locked>> | 88% | 56,188 psi | 88% | 2799 fps | 100% |
| Norma 217 | <<locked>> | 94% | 54,114 psi | 85% | 2881 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 53,693 psi | 84% | 2871 fps | 100% |
| Ramshot Magnum | <<locked>> | 86% | 56,362 psi | 88% | 2858 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,030 psi | 61% | 1942 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 54,172 psi | 85% | 2910 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 57,740 psi | 90% | 2946 fps | 99.9% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 56,231 psi | 88% | 2867 fps | 98.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 57,566 psi | 90% | 2884 fps | 100% |
| Vihtavuori N165 | <<locked>> | 84% | 54,737 psi | 86% | 2792 fps | 100% |
| Vihtavuori N170 | <<locked>> | 88% | 54,259 psi | 85% | 2815 fps | 97.4% |
| Vihtavuori N560 | <<locked>> | 82% | 57,653 psi | 90% | 2936 fps | 100% |
| Vihtavuori N565 | <<locked>> | 86% | 55,434 psi | 87% | 2877 fps | 99.9% |
| Vihtavuori N568 | <<locked>> | 88% | 53,809 psi | 84% | 2887 fps | 99.4% |
| Vihtavuori N570 | <<locked>> | 90% | 55,347 psi | 87% | 2949 fps | 98.5% |
| Winchester StaBALL HD | <<locked>> | 82% | 53,780 psi | 84% | 2858 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 82% | 54,085 psi | 85% | 2795 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% | 50,517 psi | 79% | 2717 fps | 100% |
| Accurate 8700 | <<locked>> | 94% | 43,569 psi | 68% | 2667 fps | 95.6% |
| Accurate MAGPRO | <<locked>> | 80% | 53,200 psi | 83% | 2867 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 80% | 49,937 psi | 78% | 2805 fps | 99.6% |
| ADI AR 2217 | <<locked>> | 80% | 37,362 psi | 59% | 2556 fps | 97.6% |
| ADI AR 2218 | 89.4 gr | 88% | 43,366 psi | 68% | 2753 fps | 96.1% |
| ADI AR 2225 | <<locked>> | 80% | 34,824 psi | 55% | 2533 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 80% | 50,734 psi | 80% | 2805 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 49,356 psi | 77% | 2723 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 43,468 psi | 68% | 2684 fps | 100% |
| Alliant Reloder-33 | 86.9 gr | 84% | 41,814 psi | 66% | 2680 fps | 95.4% |
| Alliant Reloder-50 | <<locked>> | 90% | 45,571 psi | 71% | 2743 fps | 96.1% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 47,195 psi | 74% | 2710 fps | 97.4% |
| Bofors RP15 | <<locked>> | 80% | 47,108 psi | 74% | 2743 fps | 99.7% |
| Bofors RP30 | <<locked>> | 80% | 40,770 psi | 64% | 2635 fps | 98.4% |
| Bofors RP5 | <<locked>> | 80% | 50,734 psi | 80% | 2805 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 40,814 psi | 64% | 2631 fps | 99% |
| Hodgdon H4831 | <<locked>> | 80% | 52,199 psi | 82% | 2799 fps | 99.6% |
| Hodgdon H4831 SC | <<locked>> | 80% | 51,271 psi | 80% | 2782 fps | 99.5% |
| Hodgdon Retumbo | <<locked>> | 80% | 42,786 psi | 67% | 2749 fps | 99.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,587 psi | 45% | 1706 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 52,286 psi | 82% | 2776 fps | 99.6% |
| IMR 7828 SSC | <<locked>> | 80% | 48,776 psi | 76% | 2789 fps | 99.5% |
| IMR 7977 Enduron | <<locked>> | 86% | 51,271 psi | 80% | 2730 fps | 95.1% |
| IMR 8133 Enduron | <<locked>> | 80% | 32,343 psi | 51% | 2451 fps | 95.2% |
| Lovex S071 | <<locked>> | 80% | 43,453 psi | 68% | 2602 fps | 100% |
| Norma 217 | <<locked>> | 80% | 32,895 psi | 52% | 2477 fps | 97.7% |
| Ramshot Grand | <<locked>> | 80% | 49,763 psi | 78% | 2808 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 80% | 45,034 psi | 71% | 2680 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,399 psi | 46% | 1745 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 42,786 psi | 67% | 2723 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 39,291 psi | 62% | 2618 fps | 96.7% |
| SNPE Vectan SP 13 | <<locked>> | 94% | 45,542 psi | 71% | 2687 fps | 95.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 53,838 psi | 84% | 2831 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 47,921 psi | 75% | 2687 fps | 100% |
| Vihtavuori N170 | <<locked>> | 84% | 47,297 psi | 74% | 2697 fps | 95.6% |
| Vihtavuori N560 | <<locked>> | 80% | 53,722 psi | 84% | 2877 fps | 99.8% |
| Vihtavuori N565 | <<locked>> | 80% | 45,034 psi | 71% | 2700 fps | 98.8% |
| Vihtavuori N568 | <<locked>> | 80% | 40,190 psi | 63% | 2635 fps | 96.4% |
| Vihtavuori N570 | 83.5 gr | 84% | 44,382 psi | 70% | 2753 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 49,806 psi | 78% | 2799 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 50,560 psi | 79% | 2743 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 42 powders for 7 mm Rem. Ultra Mag. loaded with the .287 | 160gr | Woodleigh PP SN. Hodgdon Retumbo delivers the highest muzzle velocity at 2,989 fps; across all powders the maximum-charge window runs from 1,900 fps to 2,989 fps. Accurate 8700 gives the best case fill at 100 %, and 42 of the 42 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 160.0 gr projectile in 0.287" calls for a 1:12.0 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-33 rank at the top here: for 7 mm Rem. Ultra Mag. with the .287 | 160gr | Woodleigh PP SN 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.