Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 140gr | Barnes BND SPIT-FIRE 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, 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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 86% | 55,347 psi | 87% | 2936 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 54,404 psi | 85% | 3031 fps | 98.9% |
| ADI AR 2209 | <<locked>> | 84% | 56,202 psi | 88% | 3025 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 86% | 54,984 psi | 86% | 3035 fps | 99.5% |
| ADI AR 2217 | <<locked>> | 94% | 54,085 psi | 85% | 3009 fps | 99.7% |
| ADI AR 2218 | <<locked>> | 98% | 55,085 psi | 86% | 3117 fps | 98% |
| ADI AR 2225 | <<locked>> | 98% | 57,464 psi | 90% | 3087 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 56,362 psi | 88% | 3018 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 84% | 55,782 psi | 87% | 3012 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 86% | 55,535 psi | 87% | 3031 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 88% | 57,406 psi | 90% | 2995 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 54,273 psi | 85% | 3015 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 54,215 psi | 85% | 3022 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 57,130 psi | 90% | 3097 fps | 98.1% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 57,174 psi | 90% | 3084 fps | 97.7% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 55,738 psi | 87% | 2992 fps | 98% |
| Bofors RP15 | <<locked>> | 88% | 54,969 psi | 86% | 3022 fps | 99.9% |
| Bofors RP30 | <<locked>> | 92% | 54,157 psi | 85% | 3022 fps | 99.7% |
| Bofors RP5 | <<locked>> | 86% | 55,535 psi | 87% | 3031 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 92% | 55,680 psi | 87% | 3035 fps | 100% |
| Hodgdon H4831 | <<locked>> | 86% | 57,711 psi | 90% | 3028 fps | 99.5% |
| Hodgdon H4831 SC | <<locked>> | 86% | 56,695 psi | 89% | 3012 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 56,420 psi | 88% | 2936 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 92% | 57,479 psi | 90% | 3156 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,681 psi | 59% | 2001 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 54,201 psi | 85% | 2949 fps | 99.2% |
| IMR 7828 SSC | <<locked>> | 88% | 57,276 psi | 90% | 3077 fps | 99.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 56,507 psi | 89% | 3068 fps | 99.9% |
| Lovex S071 | <<locked>> | 92% | 57,174 psi | 90% | 2963 fps | 100% |
| Norma 217 | <<locked>> | 98% | 53,795 psi | 84% | 3031 fps | 100% |
| Norma MRP | <<locked>> | 84% | 55,738 psi | 87% | 3048 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 54,636 psi | 86% | 3038 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 90% | 57,566 psi | 90% | 3025 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,624 psi | 61% | 2047 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 54,621 psi | 86% | 3077 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 53,940 psi | 85% | 3035 fps | 99% |
| Rottweil R 904 | <<locked>> | 84% | 56,565 psi | 89% | 2992 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 84% | 55,564 psi | 87% | 3005 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 55,172 psi | 86% | 3002 fps | 99.9% |
| Somchem S361 | <<locked>> | 82% | 54,578 psi | 86% | 2923 fps | 99.1% |
| Somchem S385 | <<locked>> | 84% | 56,057 psi | 88% | 2972 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 56,202 psi | 88% | 2959 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 55,825 psi | 87% | 2972 fps | 96.3% |
| Vihtavuori N555 | <<locked>> | 84% | 55,361 psi | 87% | 2976 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 55,100 psi | 86% | 3048 fps | 99.3% |
| Vihtavuori N565 | <<locked>> | 90% | 56,304 psi | 88% | 3038 fps | 99.6% |
| Vihtavuori N568 | <<locked>> | 92% | 54,288 psi | 85% | 3041 fps | 98.7% |
| Vihtavuori N570 | <<locked>> | 94% | 55,695 psi | 87% | 3104 fps | 97.4% |
| Winchester StaBALL HD | <<locked>> | 86% | 53,882 psi | 84% | 3025 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 55,869 psi | 88% | 2969 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% | 45,020 psi | 71% | 2772 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 80% | 47,007 psi | 74% | 2900 fps | 97.4% |
| ADI AR 2209 | <<locked>> | 80% | 49,052 psi | 77% | 2907 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 80% | 44,295 psi | 69% | 2844 fps | 97.7% |
| ADI AR 2217 | <<locked>> | 82% | 35,346 psi | 55% | 2635 fps | 95.1% |
| ADI AR 2218 | 93.6 gr | 94% | 47,282 psi | 74% | 2963 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 80% | 30,385 psi | 48% | 2536 fps | 96% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 49,356 psi | 77% | 2904 fps | 99.4% |
| Alliant Reloder-19 | <<locked>> | 80% | 48,892 psi | 77% | 2897 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 45,078 psi | 71% | 2851 fps | 98.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 43,830 psi | 69% | 2792 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 38,043 psi | 60% | 2726 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 50,227 psi | 79% | 2963 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 45,310 psi | 71% | 2884 fps | 95% |
| Alliant Reloder-50 | <<locked>> | 96% | 49,081 psi | 77% | 2943 fps | 95.7% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 45,527 psi | 71% | 2812 fps | 95.5% |
| Bofors RP15 | <<locked>> | 80% | 41,930 psi | 66% | 2785 fps | 98.1% |
| Bofors RP30 | <<locked>> | 80% | 35,505 psi | 56% | 2648 fps | 95.2% |
| Bofors RP5 | <<locked>> | 80% | 45,078 psi | 71% | 2851 fps | 98.9% |
| Hodgdon H1000 | <<locked>> | 80% | 35,868 psi | 56% | 2651 fps | 96% |
| Hodgdon H4831 | <<locked>> | 80% | 46,847 psi | 73% | 2844 fps | 97.8% |
| Hodgdon H4831 SC | <<locked>> | 80% | 46,021 psi | 72% | 2828 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 52,852 psi | 83% | 2890 fps | 100% |
| Hodgdon Retumbo | 75.2 gr | 80% | 37,115 psi | 58% | 2762 fps | 97.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,268 psi | 44% | 1801 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 47,630 psi | 75% | 2835 fps | 98.1% |
| IMR 7828 SSC | <<locked>> | 80% | 43,004 psi | 67% | 2825 fps | 97.5% |
| IMR 8133 Enduron | <<locked>> | 88% | 37,072 psi | 58% | 2697 fps | 95.8% |
| Lovex S071 | <<locked>> | 80% | 38,653 psi | 61% | 2648 fps | 99.2% |
| Norma 217 | <<locked>> | 84% | 32,401 psi | 51% | 2598 fps | 96.1% |
| Norma MRP | <<locked>> | 80% | 48,254 psi | 76% | 2927 fps | 99.9% |
| Ramshot Grand | <<locked>> | 80% | 43,410 psi | 68% | 2838 fps | 97.9% |
| Ramshot Magnum | <<locked>> | 80% | 39,175 psi | 61% | 2710 fps | 98.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,022 psi | 45% | 1844 fps | 100% |
| ReloadSwiss RS 76 | 80.5 gr | 80% | 36,753 psi | 58% | 2736 fps | 98.7% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 39,508 psi | 62% | 2759 fps | 95.2% |
| Rottweil R 904 | <<locked>> | 80% | 49,559 psi | 78% | 2877 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 80% | 48,515 psi | 76% | 2887 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 48,167 psi | 75% | 2884 fps | 99.4% |
| Somchem S361 | <<locked>> | 80% | 50,966 psi | 80% | 2864 fps | 98.6% |
| Somchem S385 | <<locked>> | 80% | 48,965 psi | 77% | 2861 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 80% | 42,873 psi | 67% | 2736 fps | 98.9% |
| Vihtavuori N170 | <<locked>> | 90% | 51,996 psi | 81% | 2907 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 80% | 48,399 psi | 76% | 2867 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 47,790 psi | 75% | 2920 fps | 98.1% |
| Vihtavuori N565 | <<locked>> | 80% | 39,668 psi | 62% | 2726 fps | 96.1% |
| Vihtavuori N568 | <<locked>> | 86% | 43,526 psi | 68% | 2841 fps | 96.1% |
| Vihtavuori N570 | <<locked>> | 90% | 48,066 psi | 75% | 2966 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 42,627 psi | 67% | 2844 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 45,295 psi | 71% | 2792 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 50 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 140gr | Barnes BND SPIT-FIRE. Hodgdon Retumbo delivers the highest muzzle velocity at 3,156 fps; across all powders the maximum-charge window runs from 2,001 fps to 3,156 fps. Alliant Reloder-50 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 1:9.5 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 BND SPIT-FIRE 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.