Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 120gr | Prvi Partizan HP bullet and 54 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, Alliant Reloder-33 and Winchester StaBALL HD.
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>> | 88% | 56,753 psi | 89% | 3120 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 55,767 psi | 87% | 3209 fps | 98.2% |
| ADI AR 2209 | <<locked>> | 86% | 57,580 psi | 90% | 3212 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 88% | 56,347 psi | 88% | 3219 fps | 99.1% |
| ADI AR 2217 | <<locked>> | 96% | 55,463 psi | 87% | 3182 fps | 99.4% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 56,695 psi | 89% | 3281 fps | 97.2% |
| ADI AR 2225 | <<locked>> | 98% | 54,636 psi | 86% | 3205 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 54,041 psi | 85% | 3146 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 82% | 57,508 psi | 90% | 3212 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 57,276 psi | 90% | 3199 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 88% | 56,826 psi | 89% | 3212 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 88% | 54,810 psi | 86% | 3130 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 92% | 55,347 psi | 87% | 3192 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 84% | 55,564 psi | 87% | 3205 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 54,273 psi | 85% | 3192 fps | 96.4% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 57,203 psi | 90% | 3166 fps | 97.3% |
| Bofors RP15 | <<locked>> | 90% | 56,217 psi | 88% | 3202 fps | 99.6% |
| Bofors RP30 | <<locked>> | 94% | 55,245 psi | 87% | 3192 fps | 99.3% |
| Bofors RP5 | <<locked>> | 88% | 56,826 psi | 89% | 3212 fps | 99.7% |
| Hodgdon H1000 | <<locked>> | 94% | 57,072 psi | 89% | 3209 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 86% | 55,434 psi | 87% | 3150 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 86% | 54,259 psi | 85% | 3130 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 57,580 psi | 90% | 3127 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 92% | 54,375 psi | 85% | 3271 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,521 psi | 59% | 2152 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 55,927 psi | 88% | 3130 fps | 99.9% |
| IMR 4831 | <<locked>> | 82% | 56,623 psi | 89% | 3140 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 55,622 psi | 87% | 3130 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 88% | 54,578 psi | 86% | 3196 fps | 98.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 53,635 psi | 84% | 3173 fps | 99.1% |
| Lovex S071 | <<locked>> | 92% | 54,810 psi | 86% | 3091 fps | 100% |
| Norma 204 | <<locked>> | 82% | 57,493 psi | 90% | 3189 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 54,723 psi | 86% | 3199 fps | 100% |
| Norma MRP | <<locked>> | 86% | 57,072 psi | 89% | 3232 fps | 100% |
| Ramshot Grand | <<locked>> | 88% | 56,043 psi | 88% | 3219 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 82% | 57,522 psi | 90% | 3189 fps | 100% |
| Ramshot Magnum | <<locked>> | 90% | 54,781 psi | 86% | 3140 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,377 psi | 60% | 2198 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 55,912 psi | 88% | 3255 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 55,506 psi | 87% | 3205 fps | 98.5% |
| Rottweil R 904 | <<locked>> | 84% | 54,476 psi | 85% | 3120 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 86% | 57,058 psi | 89% | 3189 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 56,652 psi | 89% | 3189 fps | 99.7% |
| Somchem S361 | <<locked>> | 84% | 56,144 psi | 88% | 3100 fps | 98.7% |
| Somchem S365 | <<locked>> | 82% | 56,014 psi | 88% | 3133 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 57,406 psi | 90% | 3156 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 57,508 psi | 90% | 3136 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 86% | 56,405 psi | 88% | 3159 fps | 100% |
| Vihtavuori N560 | <<locked>> | 86% | 56,463 psi | 88% | 3228 fps | 98.8% |
| Vihtavuori N565 | <<locked>> | 92% | 57,667 psi | 90% | 3212 fps | 99.2% |
| Vihtavuori N568 | <<locked>> | 94% | 55,738 psi | 87% | 3215 fps | 98.1% |
| Vihtavuori N570 | <<locked>> | 96% | 57,014 psi | 89% | 3274 fps | 96.6% |
| Winchester StaBALL HD | <<locked>> | 88% | 54,998 psi | 86% | 3209 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 57,522 psi | 90% | 3150 fps | 99.8% |
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% | 42,859 psi | 67% | 2881 fps | 99.2% |
| Accurate MAGPRO | <<locked>> | 80% | 44,773 psi | 70% | 3002 fps | 95.4% |
| ADI AR 2209 | <<locked>> | 80% | 46,876 psi | 73% | 3022 fps | 98.2% |
| ADI AR 2213 | <<locked>> | 80% | 42,192 psi | 66% | 2946 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 86% | 38,769 psi | 61% | 2851 fps | 95% |
| ADI AR 2218 | <<locked>> | 98% | 52,460 psi | 82% | 3199 fps | 96% |
| ADI AR 2225 | <<locked>> | 84% | 33,127 psi | 52% | 2740 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 47,181 psi | 74% | 3018 fps | 98.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 53,766 psi | 84% | 3156 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 46,760 psi | 73% | 3012 fps | 98.2% |
| Alliant Reloder-22 | <<locked>> | 80% | 42,946 psi | 67% | 2956 fps | 97.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 41,510 psi | 65% | 2904 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 35,969 psi | 56% | 2818 fps | 98.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 47,572 psi | 75% | 3074 fps | 100% |
| Alliant Reloder-33 | 100.1 gr | 94% | 50,198 psi | 79% | 3117 fps | 95.3% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 50,082 psi | 78% | 3041 fps | 95.5% |
| Bofors RP15 | <<locked>> | 80% | 39,885 psi | 63% | 2884 fps | 96.2% |
| Bofors RP30 | <<locked>> | 84% | 38,711 psi | 61% | 2864 fps | 95.1% |
| Bofors RP5 | <<locked>> | 80% | 42,946 psi | 67% | 2956 fps | 97.4% |
| Hodgdon H1000 | <<locked>> | 84% | 39,378 psi | 62% | 2871 fps | 96% |
| Hodgdon H4831 | <<locked>> | 80% | 44,817 psi | 70% | 2953 fps | 96% |
| Hodgdon H4831 SC | <<locked>> | 80% | 44,005 psi | 69% | 2936 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 50,357 psi | 79% | 3018 fps | 100% |
| Hodgdon Retumbo | 78.9 gr | 80% | 34,998 psi | 55% | 2838 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,137 psi | 44% | 1939 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 52,475 psi | 82% | 3074 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 53,040 psi | 83% | 3084 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 45,759 psi | 72% | 2949 fps | 96.6% |
| IMR 7828 SSC | <<locked>> | 80% | 40,872 psi | 64% | 2927 fps | 95.4% |
| IMR 8133 Enduron | <<locked>> | 92% | 40,292 psi | 63% | 2907 fps | 95.6% |
| Lovex S071 | <<locked>> | 80% | 36,680 psi | 57% | 2746 fps | 97.8% |
| Norma 204 | <<locked>> | 80% | 53,664 psi | 84% | 3127 fps | 99.3% |
| Norma 217 | <<locked>> | 88% | 35,186 psi | 55% | 2799 fps | 95.9% |
| Norma MRP | <<locked>> | 80% | 45,716 psi | 72% | 3031 fps | 99.1% |
| Ramshot Grand | <<locked>> | 80% | 40,857 psi | 64% | 2930 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 53,766 psi | 84% | 3130 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 37,072 psi | 58% | 2799 fps | 96.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,819 psi | 45% | 1985 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 34,708 psi | 54% | 2812 fps | 96.4% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 43,685 psi | 68% | 2982 fps | 95.4% |
| Rottweil R 904 | <<locked>> | 80% | 47,601 psi | 75% | 2995 fps | 97.5% |
| Rottweil R 905 | <<locked>> | 80% | 46,282 psi | 73% | 3002 fps | 98.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 45,948 psi | 72% | 2995 fps | 98.2% |
| Somchem S361 | <<locked>> | 80% | 48,892 psi | 77% | 2976 fps | 97.3% |
| Somchem S365 | <<locked>> | 80% | 52,344 psi | 82% | 3081 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 46,934 psi | 74% | 2976 fps | 99% |
| Vihtavuori N165 | <<locked>> | 80% | 40,857 psi | 64% | 2838 fps | 97.4% |
| Vihtavuori N555 | <<locked>> | 80% | 46,137 psi | 72% | 2992 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 45,310 psi | 71% | 3018 fps | 96.3% |
| Vihtavuori N565 | <<locked>> | 84% | 43,526 psi | 68% | 2949 fps | 96% |
| Vihtavuori N568 | <<locked>> | 88% | 44,512 psi | 70% | 3002 fps | 95% |
| Vihtavuori N570 | <<locked>> | 94% | 52,953 psi | 83% | 3199 fps | 95.5% |
| Winchester StaBALL HD | 81.1 gr | 80% | 39,871 psi | 62% | 2949 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 43,250 psi | 68% | 2897 fps | 97.5% |
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 54 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 120gr | Prvi Partizan HP. ADI AR 2218 delivers the highest muzzle velocity at 3,281 fps; across all powders the maximum-charge window runs from 2,152 fps to 3,281 fps. ADI AR 2218 gives the best case fill at 100 %, and 54 of the 54 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 120.0 gr projectile in 0.284" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. ADI AR 2218, 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, Alliant Reloder-33, Winchester StaBALL HD rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 120gr | Prvi Partizan HP 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.