Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 155gr | Frontier PH HPFB bullet and 51 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2218, Hodgdon Retumbo and ReloadSwiss RS 76.
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>> | 84% | 54,940 psi | 86% | 2818 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 50,792 psi | 80% | 2835 fps | 97.2% |
| Accurate MAGPRO | <<locked>> | 82% | 53,954 psi | 85% | 2917 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 82% | 55,593 psi | 87% | 2900 fps | 100% |
| ADI AR 2213 | <<locked>> | 84% | 54,447 psi | 85% | 2917 fps | 99.8% |
| ADI AR 2217 | <<locked>> | 92% | 54,114 psi | 85% | 2897 fps | 100% |
| ADI AR 2218 | <<locked>> | 96% | 54,795 psi | 86% | 3012 fps | 98.8% |
| ADI AR 2225 | <<locked>> | 94% | 53,722 psi | 84% | 2920 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 55,796 psi | 87% | 2897 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 55,796 psi | 87% | 2897 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 55,245 psi | 87% | 2890 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 84% | 55,056 psi | 86% | 2910 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 57,116 psi | 90% | 2874 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 88% | 54,128 psi | 85% | 2894 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 56,913 psi | 89% | 2989 fps | 98.8% |
| Alliant Reloder-50 | <<locked>> | 98% | 57,159 psi | 90% | 2979 fps | 98.5% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 54,998 psi | 86% | 2877 fps | 98.6% |
| Bofors RP15 | <<locked>> | 86% | 54,694 psi | 86% | 2904 fps | 100% |
| Bofors RP30 | <<locked>> | 90% | 54,070 psi | 85% | 2910 fps | 99.9% |
| Bofors RP5 | <<locked>> | 84% | 55,056 psi | 86% | 2910 fps | 100% |
| Hodgdon H1000 | <<locked>> | 90% | 55,230 psi | 87% | 2913 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 56,956 psi | 89% | 2907 fps | 99.8% |
| Hodgdon H4831 SC | <<locked>> | 84% | 55,927 psi | 88% | 2890 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 90% | 57,740 psi | 90% | 3038 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,840 psi | 59% | 1916 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 56,927 psi | 89% | 2881 fps | 99.8% |
| IMR 7828 SSC | <<locked>> | 86% | 57,014 psi | 89% | 2959 fps | 100% |
| IMR 8133 Enduron | <<locked>> | 98% | 56,652 psi | 89% | 2959 fps | 100% |
| Lovex S071 | <<locked>> | 90% | 56,927 psi | 89% | 2844 fps | 100% |
| Norma 217 | <<locked>> | 96% | 54,172 psi | 85% | 2923 fps | 100% |
| Norma MRP | <<locked>> | 82% | 55,201 psi | 87% | 2923 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 54,433 psi | 85% | 2923 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 88% | 57,217 psi | 90% | 2907 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,841 psi | 61% | 1959 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 54,578 psi | 86% | 2963 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 53,882 psi | 84% | 2930 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 82% | 55,796 psi | 87% | 2871 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 82% | 55,027 psi | 86% | 2884 fps | 100% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 52,707 psi | 83% | 2844 fps | 97.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 54,665 psi | 86% | 2877 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 57,450 psi | 90% | 2861 fps | 99.8% |
| Somchem S385 | <<locked>> | 82% | 55,332 psi | 87% | 2851 fps | 100% |
| Vihtavuori N165 | <<locked>> | 86% | 55,564 psi | 87% | 2838 fps | 100% |
| Vihtavuori N170 | <<locked>> | 90% | 55,288 psi | 87% | 2864 fps | 97.2% |
| Vihtavuori N555 | <<locked>> | 82% | 55,013 psi | 86% | 2851 fps | 100% |
| Vihtavuori N560 | <<locked>> | 82% | 54,491 psi | 85% | 2927 fps | 99.7% |
| Vihtavuori N565 | <<locked>> | 88% | 56,101 psi | 88% | 2927 fps | 99.9% |
| Vihtavuori N568 | <<locked>> | 90% | 54,244 psi | 85% | 2933 fps | 99.3% |
| Vihtavuori N570 | <<locked>> | 92% | 55,738 psi | 87% | 2995 fps | 98.3% |
| Winchester StaBALL HD | <<locked>> | 84% | 54,215 psi | 85% | 2907 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 84% | 55,187 psi | 86% | 2848 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% | 47,964 psi | 75% | 2713 fps | 100% |
| Accurate 8700 | <<locked>> | 96% | 43,772 psi | 69% | 2707 fps | 95.1% |
| Accurate MAGPRO | <<locked>> | 80% | 50,169 psi | 79% | 2851 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 80% | 52,025 psi | 82% | 2848 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 80% | 47,326 psi | 74% | 2795 fps | 99.1% |
| ADI AR 2217 | <<locked>> | 80% | 35,331 psi | 55% | 2539 fps | 96.3% |
| ADI AR 2218 | 88.9 gr | 90% | 43,758 psi | 69% | 2795 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 80% | 32,692 psi | 51% | 2513 fps | 98.3% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 52,301 psi | 82% | 2841 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 52,301 psi | 82% | 2841 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 80% | 51,808 psi | 81% | 2835 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 48,095 psi | 75% | 2799 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 46,659 psi | 73% | 2723 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 41,002 psi | 64% | 2677 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 86% | 42,032 psi | 66% | 2720 fps | 95% |
| Alliant Reloder-50 | <<locked>> | 92% | 45,556 psi | 71% | 2779 fps | 95.6% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 45,020 psi | 71% | 2700 fps | 96.3% |
| Bofors RP15 | <<locked>> | 80% | 44,759 psi | 70% | 2733 fps | 99.3% |
| Bofors RP30 | <<locked>> | 80% | 38,305 psi | 60% | 2618 fps | 97.4% |
| Bofors RP5 | <<locked>> | 80% | 48,095 psi | 75% | 2799 fps | 99.7% |
| Hodgdon H1000 | <<locked>> | 80% | 38,479 psi | 60% | 2615 fps | 98% |
| Hodgdon H4831 | <<locked>> | 80% | 49,545 psi | 78% | 2789 fps | 99% |
| Hodgdon H4831 SC | <<locked>> | 80% | 48,834 psi | 77% | 2776 fps | 98.9% |
| Hodgdon Retumbo | 74.6 gr | 80% | 40,059 psi | 63% | 2730 fps | 99.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,471 psi | 45% | 1719 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 50,212 psi | 79% | 2776 fps | 99.2% |
| IMR 7828 SSC | <<locked>> | 80% | 46,079 psi | 72% | 2779 fps | 98.9% |
| IMR 8133 Enduron | <<locked>> | 84% | 34,838 psi | 55% | 2546 fps | 95.9% |
| Lovex S071 | <<locked>> | 80% | 41,176 psi | 65% | 2595 fps | 99.9% |
| Norma 217 | <<locked>> | 80% | 30,501 psi | 48% | 2451 fps | 96.3% |
| Norma MRP | <<locked>> | 80% | 51,445 psi | 81% | 2864 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 46,659 psi | 73% | 2792 fps | 99.3% |
| Ramshot Magnum | <<locked>> | 80% | 42,279 psi | 66% | 2667 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,283 psi | 46% | 1762 fps | 100% |
| ReloadSwiss RS 76 | 79.8 gr | 80% | 39,740 psi | 62% | 2703 fps | 99.8% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 36,535 psi | 57% | 2592 fps | 95.1% |
| Rottweil R 904 | <<locked>> | 80% | 52,315 psi | 82% | 2815 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 80% | 51,517 psi | 81% | 2828 fps | 99.9% |
| SNPE Vectan SP 13 | <<locked>> | 96% | 45,774 psi | 72% | 2726 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 51,169 psi | 80% | 2822 fps | 99.9% |
| Somchem S361 | <<locked>> | 80% | 53,635 psi | 84% | 2802 fps | 99.5% |
| Somchem S385 | <<locked>> | 80% | 51,924 psi | 81% | 2799 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 45,571 psi | 71% | 2680 fps | 99.7% |
| Vihtavuori N170 | <<locked>> | 86% | 48,138 psi | 75% | 2743 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 80% | 51,517 psi | 81% | 2802 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 50,850 psi | 80% | 2867 fps | 99.3% |
| Vihtavuori N565 | <<locked>> | 80% | 42,569 psi | 67% | 2687 fps | 97.9% |
| Vihtavuori N568 | <<locked>> | 82% | 40,466 psi | 63% | 2677 fps | 96.1% |
| Vihtavuori N570 | <<locked>> | 86% | 44,730 psi | 70% | 2795 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 46,528 psi | 73% | 2795 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 48,153 psi | 75% | 2736 fps | 99.7% |
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 51 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 155gr | Frontier PH HPFB. Hodgdon Retumbo delivers the highest muzzle velocity at 3,038 fps; across all powders the maximum-charge window runs from 1,916 fps to 3,038 fps. Accurate 8700 gives the best case fill at 100 %, and 51 of the 51 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 155.0 gr projectile in 0.284" calls for a 1:9.5 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, Hodgdon Retumbo, ReloadSwiss RS 76 rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 155gr | Frontier PH HPFB 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.