Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 145gr | Fox Classic Hunter 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, 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% | 55,172 psi | 86% | 2900 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 54,578 psi | 86% | 2999 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 84% | 56,507 psi | 89% | 2992 fps | 100% |
| ADI AR 2213 | <<locked>> | 86% | 55,317 psi | 87% | 3002 fps | 99.7% |
| ADI AR 2217 | <<locked>> | 94% | 54,447 psi | 85% | 2979 fps | 99.9% |
| ADI AR 2218 | <<locked>> | 98% | 55,434 psi | 87% | 3087 fps | 98.4% |
| ADI AR 2225 | <<locked>> | 96% | 53,998 psi | 85% | 2999 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 55,999 psi | 88% | 2979 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 86% | 55,738 psi | 87% | 2999 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 88% | 57,595 psi | 90% | 2959 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 54,563 psi | 86% | 2979 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 54,317 psi | 85% | 2982 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 57,464 psi | 90% | 3068 fps | 98.4% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 57,217 psi | 90% | 3048 fps | 98% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 56,057 psi | 88% | 2963 fps | 98.3% |
| Bofors RP15 | <<locked>> | 88% | 55,143 psi | 86% | 2986 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 54,302 psi | 85% | 2989 fps | 99.8% |
| Bofors RP5 | <<locked>> | 86% | 55,738 psi | 87% | 2999 fps | 100% |
| Hodgdon H1000 | <<locked>> | 92% | 56,043 psi | 88% | 3002 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 54,070 psi | 85% | 2936 fps | 99.3% |
| Hodgdon H4831 SC | <<locked>> | 86% | 56,927 psi | 89% | 2979 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 56,594 psi | 89% | 2900 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 53,795 psi | 84% | 3061 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,579 psi | 59% | 1972 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 54,404 psi | 85% | 2917 fps | 99.4% |
| IMR 7828 SSC | <<locked>> | 88% | 57,638 psi | 90% | 3045 fps | 99.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 56,739 psi | 89% | 3035 fps | 99.9% |
| Lovex S071 | <<locked>> | 92% | 57,058 psi | 89% | 2923 fps | 100% |
| Norma 217 | <<locked>> | 98% | 53,983 psi | 85% | 2992 fps | 100% |
| Norma MRP | <<locked>> | 84% | 55,912 psi | 88% | 3012 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 54,955 psi | 86% | 3005 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 88% | 53,490 psi | 84% | 2930 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,667 psi | 61% | 2018 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 54,984 psi | 86% | 3045 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 54,128 psi | 85% | 3005 fps | 99.3% |
| Rottweil R 904 | <<locked>> | 84% | 56,811 psi | 89% | 2959 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 84% | 55,724 psi | 87% | 2969 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 55,347 psi | 87% | 2966 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 54,708 psi | 86% | 2890 fps | 99.3% |
| Somchem S385 | <<locked>> | 84% | 56,101 psi | 88% | 2940 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 56,362 psi | 88% | 2927 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 55,883 psi | 88% | 2943 fps | 96.7% |
| Vihtavuori N555 | <<locked>> | 84% | 55,347 psi | 87% | 2936 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 55,332 psi | 87% | 3015 fps | 99.5% |
| Vihtavuori N565 | <<locked>> | 90% | 56,391 psi | 88% | 3002 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 92% | 54,520 psi | 85% | 3009 fps | 98.9% |
| Vihtavuori N570 | <<locked>> | 94% | 55,999 psi | 88% | 3071 fps | 97.8% |
| Winchester StaBALL HD | <<locked>> | 86% | 54,157 psi | 85% | 2986 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 56,043 psi | 88% | 2933 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% | 44,730 psi | 70% | 2733 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 47,036 psi | 74% | 2867 fps | 97.7% |
| ADI AR 2209 | <<locked>> | 80% | 49,226 psi | 77% | 2874 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 80% | 44,411 psi | 70% | 2812 fps | 98% |
| ADI AR 2217 | <<locked>> | 82% | 35,244 psi | 55% | 2602 fps | 95.5% |
| ADI AR 2218 | 93.7 gr | 94% | 47,413 psi | 74% | 2936 fps | 96.2% |
| ADI AR 2225 | <<locked>> | 80% | 30,124 psi | 47% | 2497 fps | 96.2% |
| Alliant Reloder-19 | <<locked>> | 80% | 49,037 psi | 77% | 2864 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 80% | 45,092 psi | 71% | 2815 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 43,816 psi | 69% | 2753 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 38,000 psi | 60% | 2687 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 50,285 psi | 79% | 2920 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 45,353 psi | 71% | 2854 fps | 95.5% |
| Alliant Reloder-50 | <<locked>> | 96% | 48,965 psi | 77% | 2907 fps | 96% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 45,687 psi | 72% | 2782 fps | 95.9% |
| Bofors RP15 | <<locked>> | 80% | 41,901 psi | 66% | 2749 fps | 98.3% |
| Bofors RP30 | <<locked>> | 80% | 35,346 psi | 55% | 2615 fps | 95.5% |
| Bofors RP5 | <<locked>> | 80% | 45,092 psi | 71% | 2815 fps | 99.1% |
| Hodgdon H1000 | <<locked>> | 80% | 35,781 psi | 56% | 2618 fps | 96.4% |
| Hodgdon H4831 | <<locked>> | 80% | 46,963 psi | 74% | 2812 fps | 98.1% |
| Hodgdon H4831 SC | <<locked>> | 80% | 46,093 psi | 72% | 2795 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 52,750 psi | 83% | 2848 fps | 100% |
| Hodgdon Retumbo | 75.3 gr | 80% | 37,072 psi | 58% | 2726 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,152 psi | 44% | 1772 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 47,747 psi | 75% | 2805 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 80% | 43,120 psi | 68% | 2792 fps | 97.8% |
| IMR 8133 Enduron | <<locked>> | 88% | 36,956 psi | 58% | 2664 fps | 96.1% |
| Lovex S071 | <<locked>> | 80% | 38,247 psi | 60% | 2605 fps | 99.3% |
| Norma 217 | <<locked>> | 82% | 29,863 psi | 47% | 2497 fps | 95.1% |
| Norma MRP | <<locked>> | 80% | 48,124 psi | 75% | 2887 fps | 99.9% |
| Ramshot Grand | <<locked>> | 80% | 43,511 psi | 68% | 2805 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 80% | 39,102 psi | 61% | 2674 fps | 98.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,892 psi | 45% | 1814 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 36,651 psi | 57% | 2700 fps | 98.9% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 39,392 psi | 62% | 2720 fps | 95.5% |
| Rottweil R 904 | <<locked>> | 80% | 49,705 psi | 78% | 2848 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 80% | 48,559 psi | 76% | 2854 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 48,211 psi | 76% | 2848 fps | 99.5% |
| Somchem S361 | <<locked>> | 80% | 51,024 psi | 80% | 2831 fps | 98.9% |
| Somchem S385 | <<locked>> | 80% | 48,950 psi | 77% | 2825 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 80% | 42,801 psi | 67% | 2700 fps | 99% |
| Vihtavuori N170 | <<locked>> | 90% | 51,996 psi | 81% | 2877 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 80% | 48,254 psi | 76% | 2828 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 47,688 psi | 75% | 2881 fps | 98.3% |
| Vihtavuori N565 | <<locked>> | 80% | 39,465 psi | 62% | 2690 fps | 96.3% |
| Vihtavuori N568 | <<locked>> | 84% | 40,437 psi | 63% | 2743 fps | 95.3% |
| Vihtavuori N570 | 87.9 gr | 90% | 48,167 psi | 75% | 2933 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 42,670 psi | 67% | 2805 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 45,295 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 49 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 145gr | Fox Classic Hunter. ADI AR 2218 delivers the highest muzzle velocity at 3,087 fps; across all powders the maximum-charge window runs from 1,972 fps to 3,087 fps. Alliant Reloder-50 gives the best case fill at 100 %, and 49 of the 49 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. Alliant Reloder-50, 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 | 145gr | Fox Classic Hunter 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.