Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .283 | 140gr | Rhino Penetrator 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, 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% | 56,289 psi | 88% | 2949 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 55,361 psi | 87% | 3048 fps | 99% |
| ADI AR 2209 | <<locked>> | 84% | 57,203 psi | 90% | 3038 fps | 100% |
| ADI AR 2213 | <<locked>> | 86% | 55,970 psi | 88% | 3051 fps | 99.7% |
| ADI AR 2217 | <<locked>> | 94% | 55,230 psi | 87% | 3025 fps | 99.8% |
| ADI AR 2218 | <<locked>> | 98% | 56,217 psi | 88% | 3133 fps | 98.3% |
| ADI AR 2225 | <<locked>> | 96% | 54,810 psi | 86% | 3048 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 56,753 psi | 89% | 3025 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 86% | 56,521 psi | 89% | 3045 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 54,607 psi | 86% | 2956 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 55,274 psi | 87% | 3025 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 55,288 psi | 87% | 3031 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 53,998 psi | 85% | 3041 fps | 97.6% |
| Alliant Reloder-50 | <<locked>> | 98% | 54,143 psi | 85% | 3031 fps | 97.1% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 56,478 psi | 89% | 3002 fps | 98.2% |
| Bofors RP15 | <<locked>> | 88% | 55,941 psi | 88% | 3035 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 55,332 psi | 87% | 3038 fps | 99.8% |
| Bofors RP5 | <<locked>> | 86% | 56,521 psi | 89% | 3045 fps | 100% |
| Hodgdon H1000 | <<locked>> | 92% | 56,666 psi | 89% | 3045 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 54,752 psi | 86% | 2979 fps | 99.2% |
| Hodgdon H4831 SC | <<locked>> | 86% | 57,580 psi | 90% | 3025 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 57,305 psi | 90% | 2946 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 54,462 psi | 85% | 3107 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,782 psi | 59% | 2008 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 55,071 psi | 86% | 2963 fps | 99.3% |
| IMR 7828 SSC | <<locked>> | 86% | 54,302 psi | 85% | 3031 fps | 99.5% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 57,653 psi | 90% | 3084 fps | 99.9% |
| Lovex S071 | <<locked>> | 90% | 54,505 psi | 85% | 2923 fps | 100% |
| Norma 217 | <<locked>> | 98% | 55,216 psi | 87% | 3048 fps | 100% |
| Norma MRP | <<locked>> | 84% | 56,753 psi | 89% | 3061 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 55,680 psi | 87% | 3051 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 88% | 54,462 psi | 85% | 2976 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,725 psi | 61% | 2054 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 55,854 psi | 88% | 3091 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 55,230 psi | 87% | 3054 fps | 99.2% |
| Rottweil R 904 | <<locked>> | 84% | 57,493 psi | 90% | 3005 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 84% | 56,565 psi | 89% | 3018 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 56,188 psi | 88% | 3015 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 55,390 psi | 87% | 2936 fps | 99.3% |
| Somchem S385 | <<locked>> | 84% | 56,985 psi | 89% | 2986 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 57,087 psi | 89% | 2969 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 56,753 psi | 89% | 2986 fps | 96.6% |
| Vihtavuori N555 | <<locked>> | 84% | 56,231 psi | 88% | 2986 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 56,086 psi | 88% | 3061 fps | 99.4% |
| Vihtavuori N565 | <<locked>> | 90% | 57,435 psi | 90% | 3051 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 92% | 55,419 psi | 87% | 3058 fps | 98.9% |
| Vihtavuori N570 | <<locked>> | 94% | 56,826 psi | 89% | 3120 fps | 97.7% |
| Winchester StaBALL HD | <<locked>> | 86% | 55,129 psi | 86% | 3038 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 56,768 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% | 45,803 psi | 72% | 2782 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 47,935 psi | 75% | 2917 fps | 97.7% |
| ADI AR 2209 | <<locked>> | 80% | 49,821 psi | 78% | 2920 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 80% | 45,063 psi | 71% | 2858 fps | 98% |
| ADI AR 2217 | <<locked>> | 82% | 35,969 psi | 56% | 2648 fps | 95.5% |
| ADI AR 2218 | 95 gr | 94% | 48,327 psi | 76% | 2986 fps | 96.2% |
| ADI AR 2225 | <<locked>> | 80% | 30,951 psi | 49% | 2549 fps | 96.4% |
| Alliant Reloder-19 | <<locked>> | 80% | 49,661 psi | 78% | 2910 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 80% | 45,861 psi | 72% | 2864 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 44,483 psi | 70% | 2799 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 38,783 psi | 61% | 2736 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 51,329 psi | 80% | 2972 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 46,325 psi | 73% | 2904 fps | 95.5% |
| Alliant Reloder-50 | <<locked>> | 96% | 50,241 psi | 79% | 2963 fps | 96.1% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 46,224 psi | 72% | 2825 fps | 95.8% |
| Bofors RP15 | <<locked>> | 80% | 42,714 psi | 67% | 2799 fps | 98.3% |
| Bofors RP30 | <<locked>> | 80% | 36,245 psi | 57% | 2664 fps | 95.6% |
| Bofors RP5 | <<locked>> | 80% | 45,861 psi | 72% | 2864 fps | 99.1% |
| Hodgdon H1000 | <<locked>> | 80% | 36,521 psi | 57% | 2664 fps | 96.4% |
| Hodgdon H4831 | <<locked>> | 80% | 47,601 psi | 75% | 2858 fps | 98% |
| Hodgdon H4831 SC | <<locked>> | 80% | 46,746 psi | 73% | 2841 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 53,534 psi | 84% | 2894 fps | 100% |
| Hodgdon Retumbo | 76.3 gr | 80% | 37,855 psi | 59% | 2779 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,355 psi | 44% | 1808 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 48,327 psi | 76% | 2848 fps | 98.3% |
| IMR 7828 SSC | <<locked>> | 80% | 43,801 psi | 69% | 2841 fps | 97.7% |
| IMR 8133 Enduron | <<locked>> | 86% | 35,244 psi | 55% | 2651 fps | 95% |
| Lovex S071 | <<locked>> | 80% | 39,392 psi | 62% | 2661 fps | 99.4% |
| Norma 217 | <<locked>> | 82% | 30,850 psi | 48% | 2549 fps | 95.3% |
| Norma MRP | <<locked>> | 80% | 49,052 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% | 29,109 psi | 46% | 1850 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 37,565 psi | 59% | 2753 fps | 98.9% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 40,350 psi | 63% | 2772 fps | 95.6% |
| Rottweil R 904 | <<locked>> | 80% | 50,328 psi | 79% | 2890 fps | 99% |
| Rottweil R 905 | <<locked>> | 80% | 49,298 psi | 77% | 2900 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 48,994 psi | 77% | 2897 fps | 99.5% |
| Somchem S361 | <<locked>> | 80% | 51,590 psi | 81% | 2874 fps | 98.8% |
| Somchem S385 | <<locked>> | 80% | 49,719 psi | 78% | 2874 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 80% | 43,555 psi | 68% | 2746 fps | 99% |
| Vihtavuori N170 | <<locked>> | 90% | 52,924 psi | 83% | 2923 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 80% | 49,255 psi | 77% | 2881 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 48,559 psi | 76% | 2933 fps | 98.3% |
| Vihtavuori N565 | <<locked>> | 80% | 40,553 psi | 64% | 2746 fps | 96.5% |
| Vihtavuori N568 | <<locked>> | 84% | 41,350 psi | 65% | 2792 fps | 95.4% |
| Vihtavuori N570 | 89.1 gr | 90% | 49,124 psi | 77% | 2982 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 43,729 psi | 69% | 2861 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 46,006 psi | 72% | 2805 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 57 powders for 7 mm Rem. Ultra Mag. loaded with the .283 | 140gr | Rhino Penetrator. 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. Accurate 8700 gives the best case fill at 100 %, and 57 of the 57 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 0.283" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 8700, Hodgdon TrailBoss, Hodgdon US 869 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 .283 | 140gr | Rhino Penetrator they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Hodgdon US 869, Lovex D100, Ramshot LRT burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.