Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 140gr | Barnes TSX BT bullet and 49 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 2218.
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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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>> | 86% | 54,926 psi | 86% | 2933 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 54,201 psi | 85% | 3028 fps | 98.9% |
| ADI AR 2209 | <<locked>> | 84% | 56,101 psi | 88% | 3025 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 86% | 54,998 psi | 86% | 3038 fps | 99.6% |
| ADI AR 2217 | <<locked>> | 94% | 54,157 psi | 85% | 3009 fps | 99.8% |
| ADI AR 2218 | <<locked>> | 98% | 55,245 psi | 87% | 3117 fps | 98.1% |
| ADI AR 2225 | <<locked>> | 98% | 57,696 psi | 90% | 3087 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 55,825 psi | 87% | 3012 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 86% | 55,434 psi | 87% | 3031 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 88% | 57,334 psi | 90% | 2995 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 54,157 psi | 85% | 3009 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 53,969 psi | 85% | 3015 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 57,058 psi | 89% | 3094 fps | 98.2% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 56,927 psi | 89% | 3077 fps | 97.8% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 55,680 psi | 87% | 2992 fps | 98% |
| Bofors RP15 | <<locked>> | 88% | 54,853 psi | 86% | 3022 fps | 99.9% |
| Bofors RP30 | <<locked>> | 92% | 54,056 psi | 85% | 3018 fps | 99.7% |
| Bofors RP5 | <<locked>> | 86% | 55,434 psi | 87% | 3031 fps | 100% |
| Hodgdon H1000 | <<locked>> | 92% | 55,564 psi | 87% | 3028 fps | 100% |
| Hodgdon H4831 | <<locked>> | 86% | 57,696 psi | 90% | 3028 fps | 99.5% |
| Hodgdon H4831 SC | <<locked>> | 86% | 56,652 psi | 89% | 3015 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 56,130 psi | 88% | 2933 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 92% | 57,653 psi | 90% | 3156 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,550 psi | 59% | 2008 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 57,740 psi | 90% | 3005 fps | 99.6% |
| IMR 7828 SSC | <<locked>> | 88% | 57,276 psi | 90% | 3077 fps | 99.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 56,304 psi | 88% | 3064 fps | 99.9% |
| Lovex S071 | <<locked>> | 92% | 56,739 psi | 89% | 2959 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 57,638 psi | 90% | 3084 fps | 100% |
| Norma MRP | <<locked>> | 84% | 55,419 psi | 87% | 3045 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 54,549 psi | 85% | 3038 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 90% | 57,508 psi | 90% | 3022 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,609 psi | 61% | 2054 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 54,534 psi | 85% | 3074 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 53,853 psi | 84% | 3031 fps | 99.1% |
| Rottweil R 904 | <<locked>> | 84% | 56,449 psi | 88% | 2992 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 84% | 55,550 psi | 87% | 3005 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 55,172 psi | 86% | 3002 fps | 99.9% |
| Somchem S361 | <<locked>> | 82% | 54,462 psi | 85% | 2923 fps | 99.2% |
| Somchem S385 | <<locked>> | 84% | 55,680 psi | 87% | 2969 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 56,043 psi | 88% | 2959 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 55,564 psi | 87% | 2969 fps | 96.4% |
| Vihtavuori N555 | <<locked>> | 84% | 54,969 psi | 86% | 2969 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 54,810 psi | 86% | 3045 fps | 99.3% |
| Vihtavuori N565 | <<locked>> | 90% | 56,130 psi | 88% | 3035 fps | 99.6% |
| Vihtavuori N568 | <<locked>> | 92% | 54,346 psi | 85% | 3038 fps | 98.7% |
| Vihtavuori N570 | <<locked>> | 94% | 55,767 psi | 87% | 3100 fps | 97.5% |
| Winchester StaBALL HD | <<locked>> | 86% | 53,780 psi | 84% | 3018 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 55,753 psi | 87% | 2966 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% | 44,469 psi | 70% | 2762 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 80% | 46,789 psi | 73% | 2897 fps | 97.4% |
| ADI AR 2209 | <<locked>> | 80% | 48,950 psi | 77% | 2907 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 80% | 44,121 psi | 69% | 2841 fps | 97.7% |
| ADI AR 2217 | <<locked>> | 82% | 34,998 psi | 55% | 2625 fps | 95% |
| ADI AR 2218 | 95.2 gr | 94% | 47,210 psi | 74% | 2959 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 80% | 29,907 psi | 47% | 2520 fps | 95.7% |
| Alliant Reloder-19 | <<locked>> | 80% | 48,747 psi | 76% | 2897 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 44,817 psi | 70% | 2844 fps | 98.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 43,395 psi | 68% | 2782 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 37,739 psi | 59% | 2717 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 80% | 49,995 psi | 78% | 2953 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 45,005 psi | 71% | 2877 fps | 95% |
| Alliant Reloder-50 | <<locked>> | 96% | 48,602 psi | 76% | 2930 fps | 95.6% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 45,455 psi | 71% | 2812 fps | 95.5% |
| Bofors RP15 | <<locked>> | 80% | 41,510 psi | 65% | 2776 fps | 98% |
| Bofors RP30 | <<locked>> | 80% | 35,070 psi | 55% | 2638 fps | 95% |
| Bofors RP5 | <<locked>> | 80% | 44,817 psi | 70% | 2844 fps | 98.9% |
| Hodgdon H1000 | <<locked>> | 80% | 35,549 psi | 56% | 2641 fps | 96% |
| Hodgdon H4831 | <<locked>> | 80% | 46,673 psi | 73% | 2841 fps | 97.8% |
| Hodgdon H4831 SC | <<locked>> | 80% | 45,818 psi | 72% | 2825 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 52,562 psi | 82% | 2887 fps | 100% |
| Hodgdon Retumbo | 76.5 gr | 80% | 36,767 psi | 58% | 2753 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,123 psi | 44% | 1804 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 47,514 psi | 74% | 2838 fps | 98.1% |
| IMR 7828 SSC | <<locked>> | 80% | 42,801 psi | 67% | 2822 fps | 97.4% |
| IMR 8133 Enduron | <<locked>> | 88% | 36,695 psi | 57% | 2687 fps | 95.6% |
| Lovex S071 | <<locked>> | 80% | 37,942 psi | 59% | 2631 fps | 99.1% |
| Norma 217 | <<locked>> | 84% | 31,981 psi | 50% | 2582 fps | 95.9% |
| Norma MRP | <<locked>> | 80% | 47,921 psi | 75% | 2920 fps | 99.9% |
| Ramshot Grand | <<locked>> | 80% | 43,134 psi | 68% | 2831 fps | 97.9% |
| Ramshot Magnum | <<locked>> | 80% | 38,870 psi | 61% | 2700 fps | 98.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,848 psi | 45% | 1847 fps | 100% |
| ReloadSwiss RS 76 | 81.9 gr | 80% | 36,390 psi | 57% | 2726 fps | 98.6% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 39,015 psi | 61% | 2743 fps | 95% |
| Rottweil R 904 | <<locked>> | 80% | 49,472 psi | 78% | 2877 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 80% | 48,283 psi | 76% | 2884 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 47,964 psi | 75% | 2881 fps | 99.4% |
| Somchem S361 | <<locked>> | 80% | 50,662 psi | 79% | 2861 fps | 98.6% |
| Somchem S385 | <<locked>> | 80% | 48,631 psi | 76% | 2858 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 80% | 42,569 psi | 67% | 2733 fps | 98.8% |
| Vihtavuori N170 | <<locked>> | 90% | 51,735 psi | 81% | 2907 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 80% | 48,022 psi | 75% | 2864 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 47,514 psi | 74% | 2913 fps | 98.1% |
| Vihtavuori N565 | <<locked>> | 80% | 39,175 psi | 61% | 2717 fps | 95.9% |
| Vihtavuori N568 | <<locked>> | 86% | 43,323 psi | 68% | 2835 fps | 96% |
| Vihtavuori N570 | <<locked>> | 90% | 47,877 psi | 75% | 2959 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 42,279 psi | 66% | 2835 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 44,991 psi | 71% | 2785 fps | 98.9% |
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 49 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 140gr | Barnes TSX BT. Hodgdon Retumbo delivers the highest muzzle velocity at 3,156 fps; across all powders the maximum-charge window runs from 2,008 fps to 3,156 fps. Alliant Reloder-50 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 1:10.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-50, 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, ReloadSwiss RS 76, ADI AR 2218 rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 140gr | Barnes TSX BT 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.