Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 145gr | Hasler ARIETE bullet and 49 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and ADI AR 2218.
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% | 54,621 psi | 86% | 2894 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 54,027 psi | 85% | 2992 fps | 99% |
| ADI AR 2209 | <<locked>> | 84% | 55,927 psi | 88% | 2986 fps | 100% |
| ADI AR 2213 | <<locked>> | 86% | 54,723 psi | 86% | 2999 fps | 99.6% |
| ADI AR 2217 | <<locked>> | 94% | 53,911 psi | 84% | 2972 fps | 99.8% |
| ADI AR 2218 | <<locked>> | 98% | 54,795 psi | 86% | 3077 fps | 98.2% |
| ADI AR 2225 | <<locked>> | 98% | 57,159 psi | 90% | 3045 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 55,680 psi | 87% | 2976 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 86% | 55,158 psi | 86% | 2989 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 88% | 57,000 psi | 89% | 2953 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 53,954 psi | 85% | 2969 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 53,722 psi | 84% | 2976 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 56,536 psi | 89% | 3054 fps | 98.3% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 56,550 psi | 89% | 3038 fps | 97.8% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 55,463 psi | 87% | 2953 fps | 98.2% |
| Bofors RP15 | <<locked>> | 88% | 54,592 psi | 86% | 2982 fps | 99.9% |
| Bofors RP30 | <<locked>> | 94% | 57,566 psi | 90% | 3038 fps | 100% |
| Bofors RP5 | <<locked>> | 86% | 55,158 psi | 86% | 2989 fps | 100% |
| Hodgdon H1000 | <<locked>> | 92% | 55,288 psi | 87% | 2989 fps | 100% |
| Hodgdon H4831 | <<locked>> | 86% | 57,464 psi | 90% | 2989 fps | 99.6% |
| Hodgdon H4831 SC | <<locked>> | 86% | 56,405 psi | 88% | 2972 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 55,999 psi | 88% | 2894 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 92% | 57,116 psi | 90% | 3110 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,666 psi | 59% | 1972 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 57,638 psi | 90% | 2969 fps | 99.7% |
| IMR 7828 SSC | <<locked>> | 88% | 57,029 psi | 89% | 3038 fps | 99.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 55,999 psi | 88% | 3025 fps | 99.9% |
| Lovex S071 | <<locked>> | 92% | 56,507 psi | 89% | 2917 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 57,348 psi | 90% | 3045 fps | 100% |
| Norma MRP | <<locked>> | 84% | 55,158 psi | 86% | 3002 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 54,360 psi | 85% | 2995 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 90% | 57,319 psi | 90% | 2986 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,595 psi | 60% | 2014 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 54,172 psi | 85% | 3035 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 53,374 psi | 84% | 2992 fps | 99.1% |
| Rottweil R 904 | <<locked>> | 84% | 56,463 psi | 88% | 2956 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 84% | 55,347 psi | 87% | 2966 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 54,984 psi | 86% | 2963 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 54,244 psi | 85% | 2884 fps | 99.3% |
| Somchem S385 | <<locked>> | 84% | 55,550 psi | 87% | 2930 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 55,840 psi | 88% | 2920 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 55,245 psi | 87% | 2933 fps | 96.5% |
| Vihtavuori N555 | <<locked>> | 84% | 54,737 psi | 86% | 2930 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 54,563 psi | 86% | 3002 fps | 99.4% |
| Vihtavuori N565 | <<locked>> | 90% | 55,854 psi | 88% | 2999 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 92% | 53,998 psi | 85% | 3002 fps | 98.8% |
| Vihtavuori N570 | <<locked>> | 94% | 55,259 psi | 87% | 3061 fps | 97.6% |
| Winchester StaBALL HD | <<locked>> | 86% | 53,519 psi | 84% | 2979 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 55,550 psi | 87% | 2927 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% | 44,179 psi | 69% | 2723 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 80% | 46,485 psi | 73% | 2858 fps | 97.5% |
| ADI AR 2209 | <<locked>> | 80% | 48,646 psi | 76% | 2864 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 80% | 43,888 psi | 69% | 2802 fps | 97.9% |
| ADI AR 2217 | <<locked>> | 82% | 34,925 psi | 55% | 2595 fps | 95.3% |
| ADI AR 2218 | 92.9 gr | 94% | 46,847 psi | 73% | 2923 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 80% | 29,718 psi | 47% | 2490 fps | 96% |
| Alliant Reloder-19 | <<locked>> | 80% | 48,472 psi | 76% | 2858 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 80% | 44,541 psi | 70% | 2805 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 80% | 43,236 psi | 68% | 2746 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 37,478 psi | 59% | 2677 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 49,676 psi | 78% | 2913 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 44,715 psi | 70% | 2844 fps | 95.2% |
| Alliant Reloder-50 | <<locked>> | 96% | 48,312 psi | 76% | 2897 fps | 95.8% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 45,266 psi | 71% | 2772 fps | 95.7% |
| Bofors RP15 | <<locked>> | 80% | 41,365 psi | 65% | 2740 fps | 98.2% |
| Bofors RP30 | <<locked>> | 80% | 34,824 psi | 55% | 2602 fps | 95.3% |
| Bofors RP5 | <<locked>> | 80% | 44,541 psi | 70% | 2805 fps | 99% |
| Hodgdon H1000 | <<locked>> | 80% | 35,476 psi | 56% | 2612 fps | 96.2% |
| Hodgdon H4831 | <<locked>> | 80% | 46,441 psi | 73% | 2802 fps | 97.9% |
| Hodgdon H4831 SC | <<locked>> | 80% | 45,571 psi | 71% | 2785 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 52,344 psi | 82% | 2844 fps | 100% |
| Hodgdon Retumbo | 74.6 gr | 80% | 36,550 psi | 57% | 2717 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,152 psi | 44% | 1768 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 47,239 psi | 74% | 2795 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 80% | 42,714 psi | 67% | 2785 fps | 97.6% |
| IMR 8133 Enduron | <<locked>> | 88% | 36,463 psi | 57% | 2654 fps | 95.9% |
| Lovex S071 | <<locked>> | 80% | 37,884 psi | 59% | 2598 fps | 99.2% |
| Norma 217 | <<locked>> | 84% | 31,792 psi | 50% | 2552 fps | 96.1% |
| Norma MRP | <<locked>> | 80% | 47,732 psi | 75% | 2881 fps | 99.9% |
| Ramshot Grand | <<locked>> | 80% | 42,931 psi | 67% | 2795 fps | 98.1% |
| Ramshot Magnum | <<locked>> | 80% | 38,725 psi | 61% | 2667 fps | 98.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,892 psi | 45% | 1811 fps | 100% |
| ReloadSwiss RS 76 | 79.9 gr | 80% | 36,172 psi | 57% | 2690 fps | 98.7% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 38,899 psi | 61% | 2710 fps | 95.3% |
| Rottweil R 904 | <<locked>> | 80% | 49,342 psi | 77% | 2841 fps | 99% |
| Rottweil R 905 | <<locked>> | 80% | 48,167 psi | 75% | 2848 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 47,834 psi | 75% | 2841 fps | 99.4% |
| Somchem S361 | <<locked>> | 80% | 50,560 psi | 79% | 2825 fps | 98.8% |
| Somchem S385 | <<locked>> | 80% | 48,399 psi | 76% | 2818 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 80% | 42,322 psi | 66% | 2694 fps | 98.9% |
| Vihtavuori N170 | <<locked>> | 90% | 51,547 psi | 81% | 2871 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 80% | 47,848 psi | 75% | 2825 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 47,326 psi | 74% | 2877 fps | 98.2% |
| Vihtavuori N565 | <<locked>> | 80% | 39,117 psi | 61% | 2684 fps | 96.2% |
| Vihtavuori N568 | <<locked>> | 84% | 39,958 psi | 63% | 2733 fps | 95.1% |
| Vihtavuori N570 | <<locked>> | 90% | 47,674 psi | 75% | 2927 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 80% | 42,163 psi | 66% | 2799 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 44,773 psi | 70% | 2749 fps | 99% |
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 57 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 145gr | Hasler ARIETE. Hodgdon Retumbo delivers the highest muzzle velocity at 3,110 fps; across all powders the maximum-charge window runs from 1,972 fps to 3,110 fps. Accurate 8700 gives the best case fill at 100 %, and 57 of the 57 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 145.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 8700, Alliant Reloder-50, Hodgdon TrailBoss 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, ReloadSwiss RS 76, ADI AR 2218 rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 145gr | Hasler ARIETE they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Hodgdon US 869, Lovex D100, Ramshot LRT 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.