Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 145gr | Hasler Hunting bullet and 50 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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 86% | 55,390 psi | 87% | 2904 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 54,781 psi | 86% | 3002 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 84% | 56,710 psi | 89% | 2995 fps | 100% |
| ADI AR 2213 | <<locked>> | 86% | 55,506 psi | 87% | 3009 fps | 99.7% |
| ADI AR 2217 | <<locked>> | 94% | 54,839 psi | 86% | 2982 fps | 99.9% |
| ADI AR 2218 | <<locked>> | 98% | 55,767 psi | 87% | 3094 fps | 98.5% |
| ADI AR 2225 | <<locked>> | 96% | 54,201 psi | 85% | 3002 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 57,014 psi | 89% | 2995 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 56,420 psi | 88% | 2986 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 86% | 55,912 psi | 88% | 3002 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 54,143 psi | 85% | 2913 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 54,752 psi | 86% | 2982 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 54,781 psi | 86% | 2989 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 53,330 psi | 84% | 3002 fps | 97.7% |
| Alliant Reloder-50 | <<locked>> | 98% | 53,272 psi | 83% | 2986 fps | 97.2% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 56,202 psi | 88% | 2966 fps | 98.4% |
| Bofors RP15 | <<locked>> | 88% | 55,332 psi | 87% | 2989 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 54,694 psi | 86% | 2992 fps | 99.9% |
| Bofors RP5 | <<locked>> | 86% | 55,912 psi | 88% | 3002 fps | 100% |
| Hodgdon H1000 | <<locked>> | 92% | 56,260 psi | 88% | 3002 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 54,244 psi | 85% | 2940 fps | 99.3% |
| Hodgdon H4831 SC | <<locked>> | 86% | 57,116 psi | 90% | 2982 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 56,811 psi | 89% | 2904 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 54,244 psi | 85% | 3068 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,695 psi | 59% | 1975 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 54,563 psi | 86% | 2920 fps | 99.4% |
| IMR 7828 SSC | <<locked>> | 86% | 53,998 psi | 85% | 2989 fps | 99.6% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 57,116 psi | 90% | 3041 fps | 100% |
| Lovex S071 | <<locked>> | 92% | 57,450 psi | 90% | 2930 fps | 100% |
| Norma 217 | <<locked>> | 98% | 54,389 psi | 85% | 3002 fps | 100% |
| Norma MRP | <<locked>> | 84% | 56,130 psi | 88% | 3015 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 55,201 psi | 87% | 3009 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 88% | 53,882 psi | 84% | 2933 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,638 psi | 61% | 2021 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 55,187 psi | 86% | 3048 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 54,476 psi | 85% | 3009 fps | 99.3% |
| Rottweil R 904 | <<locked>> | 84% | 56,985 psi | 89% | 2966 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 84% | 56,130 psi | 88% | 2976 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 55,753 psi | 87% | 2972 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 54,853 psi | 86% | 2894 fps | 99.4% |
| Somchem S385 | <<locked>> | 84% | 56,289 psi | 88% | 2940 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 56,536 psi | 89% | 2927 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 55,985 psi | 88% | 2943 fps | 96.7% |
| Vihtavuori N555 | <<locked>> | 84% | 55,564 psi | 87% | 2940 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 55,521 psi | 87% | 3018 fps | 99.5% |
| Vihtavuori N565 | <<locked>> | 90% | 56,768 psi | 89% | 3009 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 92% | 54,868 psi | 86% | 3015 fps | 99% |
| Vihtavuori N570 | <<locked>> | 94% | 56,376 psi | 88% | 3077 fps | 97.9% |
| Winchester StaBALL HD | <<locked>> | 86% | 54,636 psi | 86% | 2992 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 56,434 psi | 88% | 2940 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% | 44,933 psi | 70% | 2736 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 47,224 psi | 74% | 2871 fps | 97.7% |
| ADI AR 2209 | <<locked>> | 80% | 49,429 psi | 77% | 2877 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 80% | 44,643 psi | 70% | 2815 fps | 98.1% |
| ADI AR 2217 | <<locked>> | 82% | 35,404 psi | 55% | 2605 fps | 95.6% |
| ADI AR 2218 | 92.1 gr | 92% | 44,208 psi | 69% | 2864 fps | 95% |
| ADI AR 2225 | <<locked>> | 80% | 30,284 psi | 47% | 2503 fps | 96.4% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 49,690 psi | 78% | 2877 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 80% | 49,226 psi | 77% | 2867 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 45,295 psi | 71% | 2818 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 44,034 psi | 69% | 2756 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 38,203 psi | 60% | 2694 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 50,531 psi | 79% | 2923 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 45,701 psi | 72% | 2861 fps | 95.6% |
| Alliant Reloder-50 | <<locked>> | 96% | 49,313 psi | 77% | 2913 fps | 96.1% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 42,917 psi | 67% | 2726 fps | 95% |
| Bofors RP15 | <<locked>> | 80% | 42,105 psi | 66% | 2753 fps | 98.4% |
| Bofors RP30 | <<locked>> | 80% | 35,534 psi | 56% | 2618 fps | 95.6% |
| Bofors RP5 | <<locked>> | 80% | 45,295 psi | 71% | 2818 fps | 99.1% |
| Hodgdon H1000 | <<locked>> | 80% | 35,969 psi | 56% | 2625 fps | 96.5% |
| Hodgdon H4831 | <<locked>> | 80% | 47,137 psi | 74% | 2818 fps | 98.2% |
| Hodgdon H4831 SC | <<locked>> | 80% | 46,267 psi | 73% | 2799 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 52,982 psi | 83% | 2851 fps | 100% |
| Hodgdon Retumbo | 75.6 gr | 80% | 37,260 psi | 58% | 2733 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,166 psi | 44% | 1772 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 47,921 psi | 75% | 2805 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 80% | 43,323 psi | 68% | 2795 fps | 97.8% |
| IMR 8133 Enduron | <<locked>> | 86% | 34,548 psi | 54% | 2605 fps | 95% |
| Lovex S071 | <<locked>> | 80% | 38,450 psi | 60% | 2612 fps | 99.3% |
| Norma 217 | <<locked>> | 82% | 30,037 psi | 47% | 2500 fps | 95.2% |
| Norma MRP | <<locked>> | 80% | 48,515 psi | 76% | 2894 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 43,743 psi | 69% | 2812 fps | 98.3% |
| Ramshot Magnum | <<locked>> | 80% | 39,436 psi | 62% | 2680 fps | 98.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,892 psi | 45% | 1814 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 36,825 psi | 58% | 2707 fps | 98.9% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 39,552 psi | 62% | 2726 fps | 95.6% |
| Rottweil R 904 | <<locked>> | 80% | 49,908 psi | 78% | 2851 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 80% | 48,762 psi | 76% | 2858 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 48,428 psi | 76% | 2851 fps | 99.5% |
| Somchem S361 | <<locked>> | 80% | 51,169 psi | 80% | 2835 fps | 98.9% |
| Somchem S385 | <<locked>> | 80% | 49,139 psi | 77% | 2828 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 80% | 43,018 psi | 67% | 2703 fps | 99.1% |
| Vihtavuori N170 | <<locked>> | 90% | 52,330 psi | 82% | 2884 fps | 95.9% |
| Vihtavuori N555 | <<locked>> | 80% | 48,486 psi | 76% | 2835 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 48,066 psi | 75% | 2890 fps | 98.4% |
| Vihtavuori N565 | <<locked>> | 80% | 39,668 psi | 62% | 2694 fps | 96.4% |
| Vihtavuori N568 | <<locked>> | 84% | 40,625 psi | 64% | 2746 fps | 95.4% |
| Vihtavuori N570 | 88.3 gr | 90% | 48,559 psi | 76% | 2940 fps | 96% |
| Winchester StaBALL HD | <<locked>> | 80% | 42,946 psi | 67% | 2812 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 45,484 psi | 71% | 2759 fps | 99.1% |
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 50 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 145gr | Hasler Hunting. ADI AR 2218 delivers the highest muzzle velocity at 3,094 fps; across all powders the maximum-charge window runs from 1,975 fps to 3,094 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 50 of the 50 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 1:10.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, IMR 8133 Enduron, 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. Hodgdon Retumbo, ADI AR 2218, Vihtavuori N570 rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 145gr | Hasler Hunting 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.