Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 145gr | CutEdge MTH 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 ReloadSwiss RS 80.
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% | 55,405 psi | 87% | 2904 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 54,781 psi | 86% | 3005 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 84% | 56,710 psi | 89% | 2995 fps | 100% |
| ADI AR 2213 | <<locked>> | 86% | 55,550 psi | 87% | 3009 fps | 99.7% |
| ADI AR 2217 | <<locked>> | 94% | 54,868 psi | 86% | 2986 fps | 99.9% |
| ADI AR 2218 | <<locked>> | 98% | 55,782 psi | 87% | 3097 fps | 98.5% |
| ADI AR 2225 | <<locked>> | 96% | 54,215 psi | 85% | 3002 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 56,855 psi | 89% | 2992 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 56,231 psi | 88% | 2986 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 86% | 55,956 psi | 88% | 3002 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 54,157 psi | 85% | 2913 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 54,795 psi | 86% | 2982 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 54,607 psi | 86% | 2989 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 53,374 psi | 84% | 2999 fps | 97.7% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 57,580 psi | 90% | 3058 fps | 98.1% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 56,231 psi | 88% | 2966 fps | 98.3% |
| Bofors RP15 | <<locked>> | 88% | 55,361 psi | 87% | 2992 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 54,520 psi | 85% | 2992 fps | 99.8% |
| Bofors RP5 | <<locked>> | 86% | 55,956 psi | 88% | 3002 fps | 100% |
| Hodgdon H1000 | <<locked>> | 92% | 56,304 psi | 88% | 3005 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 54,288 psi | 85% | 2940 fps | 99.3% |
| Hodgdon H4831 SC | <<locked>> | 86% | 57,130 psi | 90% | 2982 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 56,652 psi | 89% | 2904 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 54,041 psi | 85% | 3064 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,710 psi | 59% | 1975 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 54,607 psi | 86% | 2923 fps | 99.4% |
| IMR 7828 SSC | <<locked>> | 86% | 54,041 psi | 85% | 2992 fps | 99.6% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 56,942 psi | 89% | 3038 fps | 100% |
| Lovex S071 | <<locked>> | 92% | 57,276 psi | 90% | 2930 fps | 100% |
| Norma 217 | <<locked>> | 98% | 54,447 psi | 85% | 3002 fps | 100% |
| Norma MRP | <<locked>> | 84% | 56,188 psi | 88% | 3018 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 55,201 psi | 87% | 3009 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 88% | 53,925 psi | 85% | 2936 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,638 psi | 61% | 2021 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 55,245 psi | 87% | 3048 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 54,520 psi | 85% | 3009 fps | 99.3% |
| Rottweil R 904 | <<locked>> | 84% | 57,029 psi | 89% | 2966 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 84% | 55,970 psi | 88% | 2976 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 55,593 psi | 87% | 2972 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 54,882 psi | 86% | 2897 fps | 99.4% |
| Somchem S385 | <<locked>> | 84% | 56,333 psi | 88% | 2943 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 56,579 psi | 89% | 2930 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 56,043 psi | 88% | 2946 fps | 96.8% |
| Vihtavuori N555 | <<locked>> | 84% | 55,608 psi | 87% | 2940 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 55,550 psi | 87% | 3018 fps | 99.5% |
| Vihtavuori N565 | <<locked>> | 90% | 56,797 psi | 89% | 3009 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 92% | 54,911 psi | 86% | 3015 fps | 99% |
| Vihtavuori N570 | <<locked>> | 94% | 56,434 psi | 88% | 3081 fps | 97.9% |
| Winchester StaBALL HD | <<locked>> | 86% | 54,491 psi | 85% | 2992 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 56,463 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% | 44,962 psi | 70% | 2740 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 47,253 psi | 74% | 2871 fps | 97.8% |
| ADI AR 2209 | <<locked>> | 80% | 49,443 psi | 77% | 2881 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 80% | 44,643 psi | 70% | 2818 fps | 98.1% |
| ADI AR 2217 | <<locked>> | 82% | 35,404 psi | 55% | 2605 fps | 95.6% |
| ADI AR 2218 | 92.1 gr | 92% | 44,222 psi | 69% | 2867 fps | 95% |
| ADI AR 2225 | <<locked>> | 80% | 30,298 psi | 47% | 2503 fps | 96.4% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 49,734 psi | 78% | 2877 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 80% | 49,269 psi | 77% | 2871 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 45,339 psi | 71% | 2822 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 43,888 psi | 69% | 2756 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 38,232 psi | 60% | 2694 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 50,531 psi | 79% | 2927 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 45,556 psi | 71% | 2858 fps | 95.5% |
| Alliant Reloder-50 | <<locked>> | 96% | 49,327 psi | 77% | 2913 fps | 96.2% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 42,931 psi | 67% | 2726 fps | 95% |
| Bofors RP15 | <<locked>> | 80% | 42,119 psi | 66% | 2756 fps | 98.4% |
| Bofors RP30 | <<locked>> | 80% | 35,534 psi | 56% | 2618 fps | 95.6% |
| Bofors RP5 | <<locked>> | 80% | 45,339 psi | 71% | 2822 fps | 99.1% |
| Hodgdon H1000 | <<locked>> | 80% | 35,984 psi | 56% | 2621 fps | 96.5% |
| Hodgdon H4831 | <<locked>> | 80% | 47,181 psi | 74% | 2818 fps | 98.2% |
| Hodgdon H4831 SC | <<locked>> | 80% | 46,311 psi | 73% | 2802 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 53,026 psi | 83% | 2854 fps | 100% |
| Hodgdon Retumbo | 75.6 gr | 80% | 37,275 psi | 58% | 2736 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,166 psi | 44% | 1775 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 47,935 psi | 75% | 2808 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 80% | 43,337 psi | 68% | 2799 fps | 97.8% |
| IMR 8133 Enduron | <<locked>> | 86% | 34,592 psi | 54% | 2605 fps | 95.1% |
| Lovex S071 | <<locked>> | 80% | 38,450 psi | 60% | 2612 fps | 99.4% |
| Norma 217 | <<locked>> | 82% | 30,052 psi | 47% | 2500 fps | 95.2% |
| Norma MRP | <<locked>> | 80% | 48,370 psi | 76% | 2890 fps | 99.9% |
| Ramshot Grand | <<locked>> | 80% | 43,772 psi | 69% | 2812 fps | 98.3% |
| Ramshot Magnum | <<locked>> | 80% | 39,305 psi | 62% | 2677 fps | 98.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,906 psi | 45% | 1814 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 36,854 psi | 58% | 2707 fps | 98.9% |
| ReloadSwiss RS 80 | 85.6 gr | 84% | 39,595 psi | 62% | 2726 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 49,908 psi | 78% | 2851 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 80% | 48,805 psi | 76% | 2861 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 48,472 psi | 76% | 2854 fps | 99.5% |
| Somchem S361 | <<locked>> | 80% | 51,227 psi | 80% | 2835 fps | 98.9% |
| Somchem S385 | <<locked>> | 80% | 49,139 psi | 77% | 2831 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 80% | 43,018 psi | 67% | 2707 fps | 99.1% |
| Vihtavuori N170 | <<locked>> | 90% | 52,185 psi | 82% | 2881 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 80% | 48,515 psi | 76% | 2831 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 47,921 psi | 75% | 2887 fps | 98.4% |
| Vihtavuori N565 | <<locked>> | 80% | 39,682 psi | 62% | 2694 fps | 96.4% |
| Vihtavuori N568 | <<locked>> | 84% | 40,669 psi | 64% | 2746 fps | 95.4% |
| Vihtavuori N570 | <<locked>> | 90% | 48,399 psi | 76% | 2940 fps | 95.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 42,931 psi | 67% | 2812 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 45,513 psi | 71% | 2762 fps | 99.2% |
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 | CutEdge MTH. ADI AR 2218 delivers the highest muzzle velocity at 3,097 fps; across all powders the maximum-charge window runs from 1,975 fps to 3,097 fps. Alliant Reloder-50 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 1:9.5 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, ReloadSwiss RS 80 rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 145gr | CutEdge MTH 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.