Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 120gr | Merlin Virtus bullet and 58 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 2213.
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% | 54,085 psi | 85% | 3084 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 57,537 psi | 90% | 3245 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 86% | 55,767 psi | 87% | 3186 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 88% | 54,259 psi | 85% | 3189 fps | 98.8% |
| ADI AR 2217 | <<locked>> | 98% | 57,188 psi | 90% | 3215 fps | 99.5% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 54,331 psi | 85% | 3241 fps | 96.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 56,115 psi | 88% | 3232 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 55,506 psi | 87% | 3189 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 55,259 psi | 87% | 3169 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 88% | 54,636 psi | 86% | 3182 fps | 99.5% |
| Alliant Reloder-23 | <<locked>> | 90% | 56,289 psi | 88% | 3156 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 56,985 psi | 89% | 3222 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 57,217 psi | 90% | 3235 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 55,941 psi | 88% | 3225 fps | 96.8% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 55,419 psi | 87% | 3140 fps | 96.8% |
| Bofors RP15 | <<locked>> | 92% | 57,653 psi | 90% | 3228 fps | 99.7% |
| Bofors RP30 | <<locked>> | 96% | 56,753 psi | 89% | 3222 fps | 99.5% |
| Bofors RP5 | <<locked>> | 88% | 54,636 psi | 86% | 3182 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 94% | 54,520 psi | 85% | 3176 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 88% | 57,232 psi | 90% | 3182 fps | 98.7% |
| Hodgdon H4831 SC | <<locked>> | 88% | 56,231 psi | 88% | 3166 fps | 98.6% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 55,593 psi | 87% | 3104 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 55,796 psi | 87% | 3297 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,275 psi | 58% | 2146 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 54,215 psi | 85% | 3107 fps | 99.8% |
| IMR 4831 | <<locked>> | 82% | 54,563 psi | 86% | 3114 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 57,624 psi | 90% | 3166 fps | 98.9% |
| IMR 7828 SSC | <<locked>> | 90% | 56,507 psi | 89% | 3228 fps | 99.1% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 51,053 psi | 80% | 3130 fps | 98.6% |
| Lovex S070 | <<locked>> | 82% | 56,275 psi | 88% | 3143 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 55,912 psi | 88% | 3110 fps | 100% |
| Norma 204 | <<locked>> | 82% | 55,492 psi | 87% | 3163 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 51,982 psi | 81% | 3156 fps | 99.9% |
| Norma MRP | <<locked>> | 86% | 54,578 psi | 86% | 3196 fps | 99.9% |
| Norma URP | <<locked>> | 82% | 56,260 psi | 88% | 3163 fps | 100% |
| Ramshot Grand | <<locked>> | 88% | 53,476 psi | 84% | 3179 fps | 99% |
| Ramshot Hunter | <<locked>> | 82% | 55,419 psi | 87% | 3159 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 56,550 psi | 89% | 3173 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,087 psi | 60% | 2192 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 57,537 psi | 90% | 3228 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 57,653 psi | 90% | 3287 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 57,101 psi | 89% | 3238 fps | 98.7% |
| Rottweil R 904 | <<locked>> | 86% | 56,188 psi | 88% | 3153 fps | 99% |
| Rottweil R 905 | <<locked>> | 86% | 54,911 psi | 86% | 3163 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 82% | 56,275 psi | 88% | 3143 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 56,884 psi | 89% | 3094 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 54,520 psi | 85% | 3156 fps | 99.5% |
| Somchem S361 | <<locked>> | 84% | 54,288 psi | 85% | 3074 fps | 98.3% |
| Somchem S365 | <<locked>> | 84% | 57,711 psi | 90% | 3159 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 55,230 psi | 87% | 3127 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 90% | 55,492 psi | 87% | 3110 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 82% | 57,246 psi | 90% | 3156 fps | 100% |
| Vihtavuori N555 | <<locked>> | 86% | 54,114 psi | 85% | 3130 fps | 100% |
| Vihtavuori N560 | <<locked>> | 86% | 54,114 psi | 85% | 3192 fps | 98.4% |
| Vihtavuori N565 | <<locked>> | 92% | 55,100 psi | 86% | 3176 fps | 98.8% |
| Vihtavuori N568 | <<locked>> | 96% | 57,159 psi | 90% | 3241 fps | 98.3% |
| Winchester StaBALL HD | <<locked>> | 90% | 56,376 psi | 88% | 3235 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 55,477 psi | 87% | 3123 fps | 99.6% |
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% | 40,625 psi | 64% | 2838 fps | 98.8% |
| Accurate MAGPRO | <<locked>> | 82% | 45,876 psi | 72% | 3031 fps | 95.7% |
| ADI AR 2209 | <<locked>> | 80% | 45,063 psi | 71% | 2992 fps | 97.8% |
| ADI AR 2213 | 78.2 gr | 80% | 40,248 psi | 63% | 2907 fps | 95% |
| ADI AR 2217 | <<locked>> | 88% | 39,639 psi | 62% | 2877 fps | 95.3% |
| ADI AR 2218 | <<locked>> | 98% | 50,125 psi | 79% | 3156 fps | 95% |
| ADI AR 2225 | <<locked>> | 86% | 33,692 psi | 53% | 2759 fps | 96% |
| Alliant Reloder-16 | <<locked>> | 80% | 51,764 psi | 81% | 3130 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 44,962 psi | 70% | 2979 fps | 97.7% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,857 psi | 64% | 2913 fps | 96.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 39,465 psi | 62% | 2867 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 34,084 psi | 53% | 2776 fps | 97.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 45,078 psi | 71% | 3031 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 51,576 psi | 81% | 3146 fps | 95.6% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 51,851 psi | 81% | 3077 fps | 95.9% |
| Bofors RP15 | <<locked>> | 80% | 37,985 psi | 60% | 2844 fps | 95.4% |
| Bofors RP30 | <<locked>> | 86% | 39,421 psi | 62% | 2887 fps | 95.3% |
| Bofors RP5 | <<locked>> | 80% | 40,857 psi | 64% | 2913 fps | 96.7% |
| Hodgdon H1000 | <<locked>> | 84% | 37,623 psi | 59% | 2831 fps | 95.1% |
| Hodgdon H4831 | <<locked>> | 80% | 43,047 psi | 67% | 2920 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 80% | 42,105 psi | 66% | 2900 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 48,544 psi | 76% | 2995 fps | 100% |
| Hodgdon Retumbo | 79.8 gr | 82% | 35,810 psi | 56% | 2864 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,891 psi | 44% | 1932 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 50,749 psi | 80% | 3051 fps | 99.5% |
| IMR 4831 | <<locked>> | 80% | 50,981 psi | 80% | 3054 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 44,164 psi | 69% | 2920 fps | 96% |
| IMR 7828 SSC | <<locked>> | 82% | 41,989 psi | 66% | 2953 fps | 95.7% |
| IMR 8133 Enduron | <<locked>> | 94% | 40,988 psi | 64% | 2927 fps | 95.8% |
| Lovex S070 | <<locked>> | 80% | 52,692 psi | 83% | 3084 fps | 99.9% |
| Lovex S071 | <<locked>> | 80% | 34,650 psi | 54% | 2700 fps | 97% |
| Norma 204 | <<locked>> | 80% | 51,663 psi | 81% | 3097 fps | 98.9% |
| Norma 217 | <<locked>> | 90% | 35,665 psi | 56% | 2818 fps | 96% |
| Norma MRP | <<locked>> | 80% | 43,627 psi | 68% | 2992 fps | 98.6% |
| Norma URP | <<locked>> | 80% | 52,576 psi | 82% | 3104 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 42,105 psi | 66% | 2963 fps | 96.2% |
| Ramshot Hunter | <<locked>> | 80% | 51,677 psi | 81% | 3097 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 34,954 psi | 55% | 2749 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,529 psi | 45% | 1978 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 53,447 psi | 84% | 3166 fps | 100% |
| ReloadSwiss RS 76 | 83.3 gr | 80% | 32,706 psi | 51% | 2756 fps | 95.2% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 44,759 psi | 70% | 3009 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 45,861 psi | 72% | 2966 fps | 97% |
| Rottweil R 905 | <<locked>> | 80% | 44,353 psi | 70% | 2966 fps | 97.7% |
| Shooters World SW4350 | <<locked>> | 80% | 52,692 psi | 83% | 3084 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 53,156 psi | 83% | 3038 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 44,019 psi | 69% | 2959 fps | 97.6% |
| Somchem S361 | <<locked>> | 80% | 47,210 psi | 74% | 2946 fps | 96.7% |
| Somchem S365 | <<locked>> | 80% | 50,154 psi | 79% | 3051 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 44,802 psi | 70% | 2943 fps | 98.5% |
| Vihtavuori N165 | <<locked>> | 80% | 39,044 psi | 61% | 2805 fps | 96.8% |
| Vihtavuori N550 | <<locked>> | 80% | 53,461 psi | 84% | 3097 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 43,888 psi | 69% | 2953 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 43,410 psi | 68% | 2986 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 84% | 41,278 psi | 65% | 2907 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 90% | 45,469 psi | 71% | 3025 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 37,318 psi | 58% | 2900 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 41,437 psi | 65% | 2864 fps | 96.9% |
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 58 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 120gr | Merlin Virtus. Hodgdon Retumbo delivers the highest muzzle velocity at 3,297 fps; across all powders the maximum-charge window runs from 2,146 fps to 3,297 fps. ADI AR 2218 gives the best case fill at 100 %, and 58 of the 58 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 120.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. ADI AR 2218, ADI AR 2225, 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 2213 rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 120gr | Merlin Virtus 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.