Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 152gr | Hasler ARIETE bullet and 53 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ADI AR 2218 and Vihtavuori N570.
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>> | 86% | 56,057 psi | 88% | 2861 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 48,109 psi | 75% | 2808 fps | 96.3% |
| Accurate MAGPRO | <<locked>> | 84% | 55,376 psi | 87% | 2963 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 84% | 57,305 psi | 90% | 2953 fps | 100% |
| ADI AR 2213 | <<locked>> | 86% | 56,043 psi | 88% | 2963 fps | 99.9% |
| ADI AR 2217 | <<locked>> | 94% | 55,405 psi | 87% | 2943 fps | 100% |
| ADI AR 2218 | <<locked>> | 98% | 56,318 psi | 88% | 3058 fps | 98.9% |
| ADI AR 2225 | <<locked>> | 96% | 54,940 psi | 86% | 2963 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 57,421 psi | 90% | 2946 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 57,421 psi | 90% | 2946 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 56,811 psi | 89% | 2940 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 86% | 56,449 psi | 88% | 2959 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 54,752 psi | 86% | 2867 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 55,434 psi | 87% | 2940 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 55,419 psi | 87% | 2946 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 54,041 psi | 85% | 2966 fps | 98.1% |
| Alliant Reloder-50 | <<locked>> | 98% | 53,925 psi | 85% | 2953 fps | 97.7% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 56,637 psi | 89% | 2923 fps | 98.6% |
| Bofors RP15 | <<locked>> | 88% | 55,883 psi | 88% | 2946 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 55,245 psi | 87% | 2953 fps | 99.9% |
| Bofors RP5 | <<locked>> | 86% | 56,449 psi | 88% | 2959 fps | 100% |
| Hodgdon H1000 | <<locked>> | 92% | 56,840 psi | 89% | 2963 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 54,882 psi | 86% | 2897 fps | 99.5% |
| Hodgdon H4831 SC | <<locked>> | 86% | 57,609 psi | 90% | 2940 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 57,276 psi | 90% | 2854 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 54,824 psi | 86% | 3025 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,768 psi | 59% | 1929 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 55,085 psi | 86% | 2881 fps | 99.6% |
| IMR 7828 SSC | <<locked>> | 86% | 54,549 psi | 85% | 2946 fps | 99.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 57,696 psi | 90% | 2999 fps | 100% |
| Lovex S071 | <<locked>> | 90% | 54,404 psi | 85% | 2838 fps | 100% |
| Norma 217 | <<locked>> | 98% | 55,143 psi | 86% | 2963 fps | 100% |
| Norma MRP | <<locked>> | 84% | 56,724 psi | 89% | 2972 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 55,898 psi | 88% | 2966 fps | 100% |
| Ramshot Magnum | <<locked>> | 88% | 54,476 psi | 85% | 2894 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,725 psi | 61% | 1975 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 55,985 psi | 88% | 3005 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 55,114 psi | 86% | 2972 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 84% | 57,508 psi | 90% | 2920 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 84% | 56,536 psi | 89% | 2930 fps | 100% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 50,038 psi | 78% | 2822 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 56,159 psi | 88% | 2927 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 55,288 psi | 87% | 2851 fps | 99.6% |
| Somchem S385 | <<locked>> | 84% | 56,927 psi | 89% | 2897 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 57,072 psi | 89% | 2884 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 56,608 psi | 89% | 2907 fps | 97.2% |
| Vihtavuori N555 | <<locked>> | 84% | 56,159 psi | 88% | 2894 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 56,072 psi | 88% | 2976 fps | 99.7% |
| Vihtavuori N565 | <<locked>> | 90% | 57,305 psi | 90% | 2966 fps | 99.9% |
| Vihtavuori N568 | <<locked>> | 92% | 55,593 psi | 87% | 2976 fps | 99.3% |
| Vihtavuori N570 | <<locked>> | 94% | 56,985 psi | 89% | 3041 fps | 98.3% |
| Winchester StaBALL HD | <<locked>> | 86% | 55,434 psi | 87% | 2949 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 56,956 psi | 89% | 2897 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% | 45,556 psi | 71% | 2700 fps | 100% |
| Accurate 8700 | <<locked>> | 98% | 44,585 psi | 70% | 2743 fps | 95.1% |
| Accurate MAGPRO | <<locked>> | 80% | 47,863 psi | 75% | 2835 fps | 98.2% |
| ADI AR 2209 | <<locked>> | 80% | 49,835 psi | 78% | 2835 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 80% | 45,266 psi | 71% | 2782 fps | 98.6% |
| ADI AR 2217 | <<locked>> | 80% | 33,330 psi | 52% | 2510 fps | 95.1% |
| ADI AR 2218 | 90.3 gr | 92% | 44,657 psi | 70% | 2835 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 80% | 30,748 psi | 48% | 2480 fps | 97.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 50,285 psi | 79% | 2835 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 50,285 psi | 79% | 2835 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 80% | 49,821 psi | 78% | 2828 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 80% | 45,934 psi | 72% | 2782 fps | 99.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 44,425 psi | 70% | 2713 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 38,638 psi | 61% | 2654 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 51,271 psi | 80% | 2887 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 46,195 psi | 72% | 2825 fps | 96.2% |
| Alliant Reloder-50 | <<locked>> | 94% | 46,079 psi | 72% | 2812 fps | 95.6% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 43,366 psi | 68% | 2690 fps | 95.5% |
| Bofors RP15 | <<locked>> | 80% | 42,496 psi | 67% | 2713 fps | 98.8% |
| Bofors RP30 | <<locked>> | 80% | 36,085 psi | 57% | 2589 fps | 96.3% |
| Bofors RP5 | <<locked>> | 80% | 45,934 psi | 72% | 2782 fps | 99.4% |
| Hodgdon H1000 | <<locked>> | 80% | 36,506 psi | 57% | 2592 fps | 97.2% |
| Hodgdon H4831 | <<locked>> | 80% | 47,587 psi | 75% | 2779 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 80% | 46,876 psi | 73% | 2762 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 53,534 psi | 84% | 2805 fps | 100% |
| Hodgdon Retumbo | 74.2 gr | 80% | 37,869 psi | 59% | 2703 fps | 98.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,340 psi | 44% | 1732 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 48,254 psi | 76% | 2766 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 80% | 43,961 psi | 69% | 2762 fps | 98.3% |
| IMR 8133 Enduron | <<locked>> | 86% | 35,099 psi | 55% | 2575 fps | 95.8% |
| Lovex S071 | <<locked>> | 80% | 38,870 psi | 61% | 2575 fps | 99.6% |
| Norma 217 | <<locked>> | 82% | 30,487 psi | 48% | 2474 fps | 96% |
| Norma MRP | <<locked>> | 80% | 49,110 psi | 77% | 2854 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 44,338 psi | 69% | 2772 fps | 98.7% |
| Ramshot Magnum | <<locked>> | 80% | 39,856 psi | 62% | 2644 fps | 99% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,950 psi | 45% | 1772 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 37,420 psi | 59% | 2677 fps | 99.3% |
| ReloadSwiss RS 80 | <<locked>> | 82% | 37,086 psi | 58% | 2625 fps | 95.1% |
| Rottweil R 904 | <<locked>> | 80% | 50,430 psi | 79% | 2808 fps | 99.4% |
| Rottweil R 905 | <<locked>> | 80% | 49,356 psi | 77% | 2818 fps | 99.8% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 46,543 psi | 73% | 2759 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 49,052 psi | 77% | 2815 fps | 99.7% |
| Somchem S361 | <<locked>> | 80% | 51,735 psi | 81% | 2795 fps | 99.2% |
| Somchem S385 | <<locked>> | 80% | 49,748 psi | 78% | 2789 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 43,555 psi | 68% | 2667 fps | 99.4% |
| Vihtavuori N170 | <<locked>> | 88% | 49,269 psi | 77% | 2785 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 80% | 49,095 psi | 77% | 2789 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 48,646 psi | 76% | 2851 fps | 98.8% |
| Vihtavuori N565 | <<locked>> | 80% | 40,277 psi | 63% | 2664 fps | 97.1% |
| Vihtavuori N568 | <<locked>> | 84% | 41,147 psi | 64% | 2713 fps | 96.1% |
| Vihtavuori N570 | 84.7 gr | 88% | 45,614 psi | 71% | 2838 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 80% | 43,772 psi | 69% | 2776 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 45,919 psi | 72% | 2723 fps | 99.4% |
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 53 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 152gr | Hasler ARIETE. ADI AR 2218 delivers the highest muzzle velocity at 3,058 fps; across all powders the maximum-charge window runs from 1,929 fps to 3,058 fps. Accurate 8700 gives the best case fill at 100 %, and 53 of the 53 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 152.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 8700, Hodgdon TrailBoss, IMR 8133 Enduron 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. Hodgdon Retumbo, ADI AR 2218, Vihtavuori N570 rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 152gr | Hasler ARIETE 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.