Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 140gr | Nosler AccuBond 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% | 56,376 psi | 88% | 2953 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 55,448 psi | 87% | 3048 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 84% | 57,087 psi | 89% | 3038 fps | 100% |
| ADI AR 2213 | <<locked>> | 86% | 56,057 psi | 88% | 3051 fps | 99.7% |
| ADI AR 2217 | <<locked>> | 94% | 55,303 psi | 87% | 3025 fps | 99.8% |
| ADI AR 2218 | <<locked>> | 98% | 56,289 psi | 88% | 3133 fps | 98.3% |
| ADI AR 2225 | <<locked>> | 96% | 54,882 psi | 86% | 3048 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 57,435 psi | 90% | 3035 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 56,840 psi | 89% | 3028 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 86% | 56,608 psi | 89% | 3048 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 54,694 psi | 86% | 2959 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 55,361 psi | 87% | 3028 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 55,376 psi | 87% | 3035 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 54,085 psi | 85% | 3045 fps | 97.6% |
| Alliant Reloder-50 | <<locked>> | 98% | 54,433 psi | 85% | 3035 fps | 97.2% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 56,536 psi | 89% | 3005 fps | 98.2% |
| Bofors RP15 | <<locked>> | 88% | 56,014 psi | 88% | 3038 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 55,405 psi | 87% | 3041 fps | 99.8% |
| Bofors RP5 | <<locked>> | 86% | 56,608 psi | 89% | 3048 fps | 100% |
| Hodgdon H1000 | <<locked>> | 92% | 56,739 psi | 89% | 3045 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 54,839 psi | 86% | 2982 fps | 99.2% |
| Hodgdon H4831 SC | <<locked>> | 86% | 57,667 psi | 90% | 3025 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 57,188 psi | 90% | 2946 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 54,549 psi | 85% | 3110 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,724 psi | 59% | 2008 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 54,955 psi | 86% | 2963 fps | 99.3% |
| IMR 7828 SSC | <<locked>> | 86% | 54,389 psi | 85% | 3031 fps | 99.5% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 57,725 psi | 90% | 3084 fps | 99.9% |
| Lovex S071 | <<locked>> | 90% | 54,592 psi | 86% | 2923 fps | 100% |
| Norma 217 | <<locked>> | 98% | 55,288 psi | 87% | 3048 fps | 100% |
| Norma MRP | <<locked>> | 84% | 56,840 psi | 89% | 3061 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 55,782 psi | 87% | 3051 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 88% | 54,534 psi | 85% | 2979 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,682 psi | 61% | 2054 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 55,927 psi | 88% | 3091 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 55,347 psi | 87% | 3054 fps | 99.3% |
| Rottweil R 904 | <<locked>> | 84% | 57,580 psi | 90% | 3009 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 84% | 56,666 psi | 89% | 3022 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 56,275 psi | 88% | 3018 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 55,463 psi | 87% | 2936 fps | 99.3% |
| Somchem S385 | <<locked>> | 84% | 56,855 psi | 89% | 2986 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 57,174 psi | 90% | 2972 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 56,811 psi | 89% | 2989 fps | 96.6% |
| Vihtavuori N555 | <<locked>> | 84% | 56,333 psi | 88% | 2989 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 56,159 psi | 88% | 3064 fps | 99.5% |
| Vihtavuori N565 | <<locked>> | 90% | 57,508 psi | 90% | 3054 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 92% | 55,651 psi | 87% | 3061 fps | 98.9% |
| Vihtavuori N570 | <<locked>> | 94% | 57,116 psi | 90% | 3123 fps | 97.8% |
| Winchester StaBALL HD | <<locked>> | 86% | 55,201 psi | 87% | 3038 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 56,855 psi | 89% | 2979 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% | 45,905 psi | 72% | 2785 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 48,022 psi | 75% | 2917 fps | 97.7% |
| ADI AR 2209 | <<locked>> | 80% | 49,908 psi | 78% | 2923 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 80% | 45,150 psi | 71% | 2861 fps | 98% |
| ADI AR 2217 | <<locked>> | 82% | 36,042 psi | 56% | 2651 fps | 95.5% |
| ADI AR 2218 | 95.1 gr | 94% | 48,414 psi | 76% | 2986 fps | 96.3% |
| ADI AR 2225 | <<locked>> | 80% | 31,009 psi | 49% | 2552 fps | 96.4% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 50,227 psi | 79% | 2920 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 80% | 49,748 psi | 78% | 2913 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 80% | 45,934 psi | 72% | 2864 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 44,570 psi | 70% | 2802 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 38,870 psi | 61% | 2740 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 51,358 psi | 80% | 2976 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 46,383 psi | 73% | 2904 fps | 95.5% |
| Alliant Reloder-50 | <<locked>> | 94% | 46,659 psi | 73% | 2894 fps | 95% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 46,282 psi | 73% | 2825 fps | 95.8% |
| Bofors RP15 | <<locked>> | 80% | 42,772 psi | 67% | 2799 fps | 98.3% |
| Bofors RP30 | <<locked>> | 80% | 36,318 psi | 57% | 2667 fps | 95.7% |
| Bofors RP5 | <<locked>> | 80% | 45,934 psi | 72% | 2864 fps | 99.1% |
| Hodgdon H1000 | <<locked>> | 80% | 36,593 psi | 57% | 2667 fps | 96.4% |
| Hodgdon H4831 | <<locked>> | 80% | 47,645 psi | 75% | 2861 fps | 98% |
| Hodgdon H4831 SC | <<locked>> | 80% | 46,818 psi | 73% | 2844 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 53,635 psi | 84% | 2897 fps | 100% |
| Hodgdon Retumbo | 76.4 gr | 80% | 37,927 psi | 59% | 2782 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,311 psi | 44% | 1804 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 48,399 psi | 76% | 2848 fps | 98.3% |
| IMR 7828 SSC | <<locked>> | 80% | 43,888 psi | 69% | 2841 fps | 97.7% |
| IMR 8133 Enduron | <<locked>> | 86% | 35,331 psi | 55% | 2654 fps | 95.1% |
| Lovex S071 | <<locked>> | 80% | 39,465 psi | 62% | 2661 fps | 99.4% |
| Norma 217 | <<locked>> | 82% | 30,922 psi | 48% | 2552 fps | 95.4% |
| Norma MRP | <<locked>> | 80% | 49,139 psi | 77% | 2940 fps | 99.9% |
| Ramshot Grand | <<locked>> | 80% | 44,309 psi | 69% | 2854 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 80% | 40,118 psi | 63% | 2726 fps | 98.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,066 psi | 46% | 1847 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 37,637 psi | 59% | 2756 fps | 98.9% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 40,408 psi | 63% | 2772 fps | 95.6% |
| Rottweil R 904 | <<locked>> | 80% | 50,401 psi | 79% | 2894 fps | 99% |
| Rottweil R 905 | <<locked>> | 80% | 49,385 psi | 77% | 2904 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 49,037 psi | 77% | 2900 fps | 99.5% |
| Somchem S361 | <<locked>> | 80% | 51,663 psi | 81% | 2874 fps | 98.8% |
| Somchem S385 | <<locked>> | 80% | 49,806 psi | 78% | 2874 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 80% | 43,627 psi | 68% | 2749 fps | 99% |
| Vihtavuori N170 | <<locked>> | 90% | 53,011 psi | 83% | 2927 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 80% | 49,356 psi | 77% | 2881 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 48,617 psi | 76% | 2933 fps | 98.3% |
| Vihtavuori N565 | <<locked>> | 80% | 40,495 psi | 63% | 2743 fps | 96.4% |
| Vihtavuori N568 | <<locked>> | 84% | 41,423 psi | 65% | 2792 fps | 95.4% |
| Vihtavuori N570 | 89.2 gr | 90% | 49,197 psi | 77% | 2982 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 43,830 psi | 69% | 2861 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 46,064 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 | Nosler AccuBond. ADI AR 2218 delivers the highest muzzle velocity at 3,133 fps; across all powders the maximum-charge window runs from 2,008 fps to 3,133 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 1:11.0 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 | Nosler AccuBond 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.