Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 140gr | Swift A-Frame bullet and 51 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2218, Vihtavuori N570 and Hodgdon Retumbo.
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>> | 84% | 53,853 psi | 84% | 2913 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 50,038 psi | 78% | 2913 fps | 96.3% |
| Accurate MAGPRO | <<locked>> | 84% | 57,000 psi | 89% | 3071 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 82% | 54,723 psi | 86% | 2999 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 86% | 57,479 psi | 90% | 3071 fps | 99.8% |
| ADI AR 2217 | <<locked>> | 94% | 57,072 psi | 89% | 3051 fps | 100% |
| ADI AR 2218 | <<locked>> | 96% | 53,998 psi | 85% | 3091 fps | 98% |
| ADI AR 2225 | <<locked>> | 96% | 56,724 psi | 89% | 3068 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 54,926 psi | 86% | 2995 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 82% | 54,375 psi | 85% | 2989 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 84% | 54,070 psi | 85% | 3005 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 86% | 56,173 psi | 88% | 2972 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 57,043 psi | 89% | 3045 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 57,130 psi | 90% | 3054 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 56,057 psi | 88% | 3074 fps | 98.1% |
| Alliant Reloder-50 | <<locked>> | 98% | 56,434 psi | 88% | 3061 fps | 97.7% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 54,143 psi | 85% | 2963 fps | 97.8% |
| Bofors RP15 | <<locked>> | 88% | 57,377 psi | 90% | 3054 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 56,956 psi | 89% | 3058 fps | 99.9% |
| Bofors RP5 | <<locked>> | 84% | 54,070 psi | 85% | 3005 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 90% | 54,302 psi | 85% | 3005 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 84% | 56,159 psi | 88% | 3002 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 84% | 54,998 psi | 86% | 2982 fps | 99.3% |
| Hodgdon Retumbo | <<locked>> | 90% | 56,376 psi | 88% | 3130 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,782 psi | 59% | 2014 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 56,202 psi | 88% | 2982 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 86% | 55,840 psi | 88% | 3051 fps | 99.7% |
| IMR 8133 Enduron | <<locked>> | 98% | 55,695 psi | 87% | 3048 fps | 99.9% |
| Lovex S071 | <<locked>> | 90% | 55,970 psi | 88% | 2943 fps | 100% |
| Norma 217 | <<locked>> | 98% | 57,145 psi | 90% | 3071 fps | 100% |
| Norma MRP | <<locked>> | 82% | 54,302 psi | 85% | 3018 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 57,537 psi | 90% | 3074 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 88% | 56,289 psi | 88% | 3002 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,725 psi | 61% | 2060 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 53,447 psi | 84% | 3048 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 57,246 psi | 90% | 3081 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 82% | 55,071 psi | 86% | 2969 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 82% | 54,172 psi | 85% | 2979 fps | 99.9% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 51,938 psi | 81% | 2923 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 57,537 psi | 90% | 3035 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 56,579 psi | 89% | 2953 fps | 99.5% |
| Somchem S385 | <<locked>> | 82% | 54,592 psi | 86% | 2949 fps | 100% |
| Vihtavuori N165 | <<locked>> | 86% | 54,766 psi | 86% | 2933 fps | 100% |
| Vihtavuori N170 | <<locked>> | 90% | 54,447 psi | 85% | 2949 fps | 96.2% |
| Vihtavuori N555 | <<locked>> | 84% | 57,638 psi | 90% | 3002 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 57,551 psi | 90% | 3081 fps | 99.6% |
| Vihtavuori N565 | <<locked>> | 88% | 55,071 psi | 86% | 3012 fps | 99.5% |
| Vihtavuori N568 | <<locked>> | 92% | 57,377 psi | 90% | 3084 fps | 99.2% |
| Vihtavuori N570 | <<locked>> | 92% | 54,737 psi | 86% | 3081 fps | 97.4% |
| Winchester StaBALL HD | <<locked>> | 86% | 57,203 psi | 90% | 3061 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 84% | 54,375 psi | 85% | 2940 fps | 99.9% |
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% | 47,065 psi | 74% | 2805 fps | 100% |
| Accurate 8700 | <<locked>> | 98% | 46,383 psi | 73% | 2841 fps | 95.1% |
| Accurate MAGPRO | <<locked>> | 80% | 49,356 psi | 77% | 2940 fps | 98.1% |
| ADI AR 2209 | <<locked>> | 80% | 50,981 psi | 80% | 2936 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 80% | 46,354 psi | 73% | 2881 fps | 98.3% |
| ADI AR 2217 | <<locked>> | 82% | 37,028 psi | 58% | 2671 fps | 96.1% |
| ADI AR 2218 | 95.1 gr | 92% | 46,238 psi | 72% | 2936 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 80% | 31,952 psi | 50% | 2575 fps | 97% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 51,416 psi | 81% | 2936 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 80% | 50,923 psi | 80% | 2930 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 80% | 47,137 psi | 74% | 2884 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 45,832 psi | 72% | 2818 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 39,943 psi | 63% | 2756 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 52,953 psi | 83% | 2995 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 48,080 psi | 75% | 2930 fps | 96.1% |
| Alliant Reloder-50 | <<locked>> | 94% | 48,356 psi | 76% | 2920 fps | 95.7% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 44,324 psi | 69% | 2785 fps | 95.3% |
| Bofors RP15 | <<locked>> | 80% | 43,801 psi | 69% | 2818 fps | 98.6% |
| Bofors RP30 | <<locked>> | 80% | 37,449 psi | 59% | 2687 fps | 96.2% |
| Bofors RP5 | <<locked>> | 80% | 47,137 psi | 74% | 2884 fps | 99.3% |
| Hodgdon H1000 | <<locked>> | 80% | 37,623 psi | 59% | 2690 fps | 96.9% |
| Hodgdon H4831 | <<locked>> | 80% | 48,805 psi | 76% | 2877 fps | 98.3% |
| Hodgdon H4831 SC | <<locked>> | 80% | 47,906 psi | 75% | 2861 fps | 98.2% |
| Hodgdon Retumbo | 78.1 gr | 80% | 39,117 psi | 61% | 2805 fps | 98.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,413 psi | 45% | 1814 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 49,298 psi | 77% | 2864 fps | 98.6% |
| IMR 7828 SSC | <<locked>> | 80% | 45,136 psi | 71% | 2861 fps | 98.1% |
| IMR 8133 Enduron | <<locked>> | 86% | 36,564 psi | 57% | 2677 fps | 95.7% |
| Lovex S071 | <<locked>> | 80% | 40,364 psi | 63% | 2677 fps | 99.5% |
| Norma 217 | <<locked>> | 82% | 32,039 psi | 50% | 2579 fps | 96% |
| Norma MRP | <<locked>> | 80% | 50,401 psi | 79% | 2956 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 45,788 psi | 72% | 2877 fps | 98.6% |
| Ramshot Magnum | <<locked>> | 80% | 41,394 psi | 65% | 2746 fps | 99% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,167 psi | 46% | 1857 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 38,885 psi | 61% | 2779 fps | 99.3% |
| ReloadSwiss RS 80 | <<locked>> | 82% | 38,812 psi | 61% | 2730 fps | 95.1% |
| Rottweil R 904 | <<locked>> | 80% | 51,547 psi | 81% | 2910 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 80% | 50,633 psi | 79% | 2920 fps | 99.7% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 48,356 psi | 76% | 2864 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 50,285 psi | 79% | 2917 fps | 99.7% |
| Somchem S361 | <<locked>> | 80% | 52,823 psi | 83% | 2894 fps | 99% |
| Somchem S385 | <<locked>> | 80% | 50,966 psi | 80% | 2890 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 80% | 44,744 psi | 70% | 2769 fps | 99.3% |
| Vihtavuori N170 | <<locked>> | 88% | 50,691 psi | 79% | 2884 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 80% | 50,517 psi | 79% | 2897 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 49,835 psi | 78% | 2953 fps | 98.6% |
| Vihtavuori N565 | <<locked>> | 80% | 41,727 psi | 65% | 2766 fps | 96.9% |
| Vihtavuori N568 | <<locked>> | 84% | 42,685 psi | 67% | 2815 fps | 95.9% |
| Vihtavuori N570 | 89.1 gr | 88% | 47,123 psi | 74% | 2940 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 45,339 psi | 71% | 2881 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 47,181 psi | 74% | 2822 fps | 99.3% |
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 51 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 140gr | Swift A-Frame. Hodgdon Retumbo delivers the highest muzzle velocity at 3,130 fps; across all powders the maximum-charge window runs from 2,014 fps to 3,130 fps. Accurate 8700 gives the best case fill at 100 %, and 51 of the 51 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 140.0 gr projectile in 0.284" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 8700, Hodgdon TrailBoss, 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. ADI AR 2218, Vihtavuori N570, Hodgdon Retumbo rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 140gr | Swift A-Frame 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.