Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 140gr | Speer TBBC bullet and 49 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.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 86% | 57,305 psi | 90% | 2963 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 56,550 psi | 89% | 3064 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 82% | 54,273 psi | 85% | 2992 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 86% | 57,014 psi | 89% | 3064 fps | 99.8% |
| ADI AR 2217 | <<locked>> | 94% | 56,652 psi | 89% | 3041 fps | 99.9% |
| ADI AR 2218 | <<locked>> | 96% | 53,432 psi | 84% | 3081 fps | 97.8% |
| ADI AR 2225 | <<locked>> | 96% | 56,260 psi | 88% | 3064 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 54,099 psi | 85% | 2982 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 86% | 57,522 psi | 90% | 3058 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 55,666 psi | 87% | 2969 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 56,579 psi | 89% | 3038 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 56,637 psi | 89% | 3048 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 55,680 psi | 87% | 3068 fps | 98% |
| Alliant Reloder-50 | <<locked>> | 98% | 55,782 psi | 87% | 3051 fps | 97.6% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 57,537 psi | 90% | 3018 fps | 98.4% |
| Bofors RP15 | <<locked>> | 88% | 56,927 psi | 89% | 3051 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 56,536 psi | 89% | 3054 fps | 99.9% |
| Bofors RP5 | <<locked>> | 86% | 57,522 psi | 90% | 3058 fps | 100% |
| Hodgdon H1000 | <<locked>> | 90% | 54,027 psi | 85% | 3002 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 84% | 55,738 psi | 87% | 2995 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 84% | 54,737 psi | 86% | 2979 fps | 99.3% |
| Hodgdon Retumbo | <<locked>> | 90% | 56,101 psi | 88% | 3127 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,724 psi | 59% | 2011 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 55,956 psi | 88% | 2976 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 86% | 55,579 psi | 87% | 3048 fps | 99.7% |
| IMR 8133 Enduron | <<locked>> | 98% | 55,245 psi | 87% | 3045 fps | 99.8% |
| Lovex S071 | <<locked>> | 90% | 55,709 psi | 87% | 2940 fps | 100% |
| Norma 217 | <<locked>> | 98% | 56,681 psi | 89% | 3064 fps | 100% |
| Norma MRP | <<locked>> | 82% | 53,853 psi | 84% | 3012 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 57,029 psi | 89% | 3068 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 88% | 55,811 psi | 87% | 2995 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,827 psi | 61% | 2060 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 57,348 psi | 90% | 3110 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 56,782 psi | 89% | 3074 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 82% | 54,781 psi | 86% | 2966 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 84% | 57,624 psi | 90% | 3031 fps | 100% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 51,590 psi | 81% | 2920 fps | 96.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 57,246 psi | 90% | 3031 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 56,231 psi | 88% | 2946 fps | 99.4% |
| Somchem S385 | <<locked>> | 82% | 54,143 psi | 85% | 2943 fps | 100% |
| Vihtavuori N165 | <<locked>> | 86% | 54,317 psi | 85% | 2930 fps | 100% |
| Vihtavuori N170 | <<locked>> | 90% | 54,070 psi | 85% | 2943 fps | 96.1% |
| Vihtavuori N555 | <<locked>> | 84% | 57,363 psi | 90% | 2999 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 57,101 psi | 89% | 3077 fps | 99.6% |
| Vihtavuori N565 | <<locked>> | 88% | 54,824 psi | 86% | 3009 fps | 99.5% |
| Vihtavuori N568 | <<locked>> | 92% | 56,942 psi | 89% | 3077 fps | 99.2% |
| Vihtavuori N570 | <<locked>> | 92% | 54,346 psi | 85% | 3074 fps | 97.3% |
| Winchester StaBALL HD | <<locked>> | 86% | 56,666 psi | 89% | 3054 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 84% | 54,157 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% | 46,659 psi | 73% | 2795 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 48,936 psi | 77% | 2933 fps | 98% |
| ADI AR 2209 | <<locked>> | 80% | 50,720 psi | 79% | 2933 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 80% | 46,093 psi | 72% | 2874 fps | 98.3% |
| ADI AR 2217 | <<locked>> | 82% | 36,811 psi | 58% | 2667 fps | 95.9% |
| ADI AR 2218 | 94.6 gr | 92% | 45,905 psi | 72% | 2930 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 80% | 31,734 psi | 50% | 2569 fps | 96.9% |
| Alliant Reloder-19 | <<locked>> | 80% | 50,488 psi | 79% | 2923 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 46,891 psi | 73% | 2881 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 45,556 psi | 71% | 2815 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 39,682 psi | 62% | 2753 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 52,431 psi | 82% | 2986 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 47,688 psi | 75% | 2927 fps | 96% |
| Alliant Reloder-50 | <<locked>> | 94% | 48,008 psi | 75% | 2917 fps | 95.5% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 43,976 psi | 69% | 2776 fps | 95.1% |
| Bofors RP15 | <<locked>> | 80% | 43,555 psi | 68% | 2812 fps | 98.6% |
| Bofors RP30 | <<locked>> | 80% | 37,057 psi | 58% | 2680 fps | 96% |
| Bofors RP5 | <<locked>> | 80% | 46,891 psi | 73% | 2881 fps | 99.3% |
| Hodgdon H1000 | <<locked>> | 80% | 37,391 psi | 59% | 2684 fps | 96.8% |
| Hodgdon H4831 | <<locked>> | 80% | 48,530 psi | 76% | 2874 fps | 98.3% |
| Hodgdon H4831 SC | <<locked>> | 80% | 47,674 psi | 75% | 2858 fps | 98.1% |
| Hodgdon Retumbo | 77.7 gr | 80% | 38,827 psi | 61% | 2799 fps | 98.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,311 psi | 44% | 1811 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 49,066 psi | 77% | 2861 fps | 98.5% |
| IMR 7828 SSC | <<locked>> | 80% | 44,846 psi | 70% | 2858 fps | 98% |
| IMR 8133 Enduron | <<locked>> | 86% | 36,187 psi | 57% | 2667 fps | 95.5% |
| Lovex S071 | <<locked>> | 80% | 40,089 psi | 63% | 2671 fps | 99.5% |
| Norma 217 | <<locked>> | 82% | 31,763 psi | 50% | 2572 fps | 95.9% |
| Norma MRP | <<locked>> | 80% | 50,111 psi | 79% | 2949 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 45,324 psi | 71% | 2871 fps | 98.5% |
| Ramshot Magnum | <<locked>> | 80% | 41,002 psi | 64% | 2740 fps | 98.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,066 psi | 46% | 1854 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 38,493 psi | 60% | 2772 fps | 99.2% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 41,597 psi | 65% | 2795 fps | 96.2% |
| Rottweil R 904 | <<locked>> | 80% | 51,300 psi | 80% | 2907 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 80% | 50,372 psi | 79% | 2917 fps | 99.7% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 48,022 psi | 75% | 2858 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 50,024 psi | 78% | 2913 fps | 99.6% |
| Somchem S361 | <<locked>> | 80% | 52,605 psi | 82% | 2890 fps | 99% |
| Somchem S385 | <<locked>> | 80% | 50,734 psi | 80% | 2887 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 80% | 44,338 psi | 69% | 2759 fps | 99.2% |
| Vihtavuori N170 | <<locked>> | 88% | 50,488 psi | 79% | 2881 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 80% | 50,227 psi | 79% | 2894 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 49,559 psi | 78% | 2949 fps | 98.6% |
| Vihtavuori N565 | <<locked>> | 80% | 41,350 psi | 65% | 2759 fps | 96.8% |
| Vihtavuori N568 | <<locked>> | 84% | 42,438 psi | 67% | 2812 fps | 95.8% |
| Vihtavuori N570 | 88.7 gr | 88% | 46,876 psi | 73% | 2936 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 44,991 psi | 71% | 2877 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 46,934 psi | 74% | 2818 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 49 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 140gr | Speer TBBC. Hodgdon Retumbo delivers the highest muzzle velocity at 3,127 fps; across all powders the maximum-charge window runs from 2,011 fps to 3,127 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 49 of the 49 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 1:12.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, SNPE Vectan SP 13 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 | Speer TBBC 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.