Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 140gr | SUS-TAC HP 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 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.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 86% | 56,260 psi | 88% | 2949 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 55,332 psi | 87% | 3045 fps | 99% |
| ADI AR 2209 | <<locked>> | 84% | 57,174 psi | 90% | 3038 fps | 100% |
| ADI AR 2213 | <<locked>> | 86% | 55,956 psi | 88% | 3051 fps | 99.7% |
| ADI AR 2217 | <<locked>> | 94% | 55,216 psi | 87% | 3025 fps | 99.8% |
| ADI AR 2218 | <<locked>> | 98% | 56,202 psi | 88% | 3136 fps | 98.3% |
| ADI AR 2225 | <<locked>> | 96% | 54,766 psi | 86% | 3045 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 57,319 psi | 90% | 3035 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 56,724 psi | 89% | 3028 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 86% | 56,492 psi | 89% | 3045 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 54,563 psi | 86% | 2956 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 55,288 psi | 87% | 3025 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 55,274 psi | 87% | 3035 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 54,172 psi | 85% | 3045 fps | 97.6% |
| Alliant Reloder-50 | <<locked>> | 98% | 54,346 psi | 85% | 3035 fps | 97.2% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 56,463 psi | 88% | 3002 fps | 98.2% |
| Bofors RP15 | <<locked>> | 88% | 55,898 psi | 88% | 3035 fps | 99.9% |
| Bofors RP30 | <<locked>> | 92% | 55,317 psi | 87% | 3038 fps | 99.8% |
| Bofors RP5 | <<locked>> | 86% | 56,492 psi | 89% | 3045 fps | 100% |
| Hodgdon H1000 | <<locked>> | 92% | 56,623 psi | 89% | 3045 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 54,766 psi | 86% | 2982 fps | 99.2% |
| Hodgdon H4831 SC | <<locked>> | 86% | 57,595 psi | 90% | 3025 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 57,276 psi | 90% | 2949 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 54,665 psi | 86% | 3110 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,782 psi | 59% | 2008 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 55,042 psi | 86% | 2963 fps | 99.3% |
| IMR 7828 SSC | <<locked>> | 86% | 54,491 psi | 85% | 3031 fps | 99.6% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 57,624 psi | 90% | 3081 fps | 99.9% |
| Lovex S071 | <<locked>> | 90% | 54,665 psi | 86% | 2927 fps | 100% |
| Norma 217 | <<locked>> | 98% | 55,230 psi | 87% | 3048 fps | 100% |
| Norma MRP | <<locked>> | 84% | 56,724 psi | 89% | 3061 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 55,680 psi | 87% | 3051 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 88% | 54,447 psi | 85% | 2979 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,725 psi | 61% | 2054 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 55,840 psi | 88% | 3094 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 55,245 psi | 87% | 3054 fps | 99.3% |
| Rottweil R 904 | <<locked>> | 84% | 57,508 psi | 90% | 3009 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 84% | 56,536 psi | 89% | 3018 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 56,159 psi | 88% | 3015 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 55,361 psi | 87% | 2936 fps | 99.3% |
| Somchem S385 | <<locked>> | 84% | 56,956 psi | 89% | 2986 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 57,087 psi | 89% | 2969 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 56,753 psi | 89% | 2989 fps | 96.6% |
| Vihtavuori N555 | <<locked>> | 84% | 56,202 psi | 88% | 2986 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 56,043 psi | 88% | 3061 fps | 99.4% |
| Vihtavuori N565 | <<locked>> | 90% | 57,421 psi | 90% | 3054 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 92% | 55,608 psi | 87% | 3061 fps | 98.9% |
| Vihtavuori N570 | <<locked>> | 94% | 57,014 psi | 89% | 3123 fps | 97.8% |
| Winchester StaBALL HD | <<locked>> | 86% | 55,332 psi | 87% | 3041 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 56,956 psi | 89% | 2982 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% | 45,774 psi | 72% | 2785 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 47,906 psi | 75% | 2917 fps | 97.7% |
| ADI AR 2209 | <<locked>> | 80% | 49,835 psi | 78% | 2920 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 80% | 45,063 psi | 71% | 2861 fps | 98% |
| ADI AR 2217 | <<locked>> | 82% | 36,085 psi | 57% | 2651 fps | 95.5% |
| ADI AR 2218 | 95 gr | 94% | 48,327 psi | 76% | 2982 fps | 96.2% |
| ADI AR 2225 | <<locked>> | 80% | 30,966 psi | 49% | 2552 fps | 96.4% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 50,111 psi | 79% | 2917 fps | 99.5% |
| Alliant Reloder-19 | <<locked>> | 80% | 49,647 psi | 78% | 2910 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 80% | 45,847 psi | 72% | 2864 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 80% | 44,643 psi | 70% | 2802 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 38,798 psi | 61% | 2740 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 51,285 psi | 80% | 2976 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 46,296 psi | 73% | 2900 fps | 95.5% |
| Alliant Reloder-50 | <<locked>> | 94% | 46,615 psi | 73% | 2894 fps | 95% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 46,238 psi | 72% | 2825 fps | 95.7% |
| Bofors RP15 | <<locked>> | 80% | 42,685 psi | 67% | 2799 fps | 98.3% |
| Bofors RP30 | <<locked>> | 80% | 36,216 psi | 57% | 2664 fps | 95.6% |
| Bofors RP5 | <<locked>> | 80% | 45,847 psi | 72% | 2864 fps | 99% |
| Hodgdon H1000 | <<locked>> | 80% | 36,535 psi | 57% | 2664 fps | 96.4% |
| Hodgdon H4831 | <<locked>> | 80% | 47,572 psi | 75% | 2858 fps | 98% |
| Hodgdon H4831 SC | <<locked>> | 80% | 46,717 psi | 73% | 2841 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 53,505 psi | 84% | 2897 fps | 100% |
| Hodgdon Retumbo | 76.3 gr | 80% | 37,840 psi | 59% | 2779 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,340 psi | 44% | 1808 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 48,298 psi | 76% | 2848 fps | 98.3% |
| IMR 7828 SSC | <<locked>> | 80% | 43,801 psi | 69% | 2838 fps | 97.7% |
| IMR 8133 Enduron | <<locked>> | 86% | 35,259 psi | 55% | 2651 fps | 95% |
| Lovex S071 | <<locked>> | 80% | 39,363 psi | 62% | 2661 fps | 99.3% |
| Norma 217 | <<locked>> | 82% | 30,835 psi | 48% | 2552 fps | 95.3% |
| Norma MRP | <<locked>> | 80% | 49,023 psi | 77% | 2936 fps | 99.9% |
| Ramshot Grand | <<locked>> | 80% | 44,222 psi | 69% | 2851 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 80% | 40,045 psi | 63% | 2723 fps | 98.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,095 psi | 46% | 1847 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 37,579 psi | 59% | 2753 fps | 98.9% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 40,495 psi | 63% | 2776 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 50,299 psi | 79% | 2890 fps | 99% |
| Rottweil R 905 | <<locked>> | 80% | 49,313 psi | 77% | 2900 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 48,965 psi | 77% | 2897 fps | 99.5% |
| Somchem S361 | <<locked>> | 80% | 51,750 psi | 81% | 2877 fps | 98.8% |
| Somchem S385 | <<locked>> | 80% | 49,734 psi | 78% | 2874 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 80% | 43,569 psi | 68% | 2749 fps | 99% |
| Vihtavuori N170 | <<locked>> | 90% | 52,910 psi | 83% | 2927 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 80% | 49,226 psi | 77% | 2881 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 48,530 psi | 76% | 2930 fps | 98.3% |
| Vihtavuori N565 | <<locked>> | 80% | 40,524 psi | 64% | 2743 fps | 96.4% |
| Vihtavuori N568 | <<locked>> | 84% | 41,365 psi | 65% | 2792 fps | 95.3% |
| Vihtavuori N570 | 89.1 gr | 90% | 49,139 psi | 77% | 2986 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 43,758 psi | 69% | 2861 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 45,977 psi | 72% | 2802 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 50 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 140gr | SUS-TAC HP. ADI AR 2218 delivers the highest muzzle velocity at 3,136 fps; across all powders the maximum-charge window runs from 2,008 fps to 3,136 fps. Hodgdon TrailBoss 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 140.0 gr projectile in 0.284" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, IMR 8133 Enduron, 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. Hodgdon Retumbo, ADI AR 2218, Vihtavuori N570 rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 140gr | SUS-TAC 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.