Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .283 | 140gr | Frontier PH HPBT bullet and 51 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% | 56,159 psi | 88% | 2949 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 55,230 psi | 87% | 3048 fps | 99% |
| ADI AR 2209 | <<locked>> | 84% | 57,058 psi | 89% | 3038 fps | 100% |
| ADI AR 2213 | <<locked>> | 86% | 55,825 psi | 87% | 3048 fps | 99.6% |
| ADI AR 2217 | <<locked>> | 94% | 55,100 psi | 86% | 3025 fps | 99.8% |
| ADI AR 2218 | <<locked>> | 98% | 56,101 psi | 88% | 3133 fps | 98.3% |
| ADI AR 2225 | <<locked>> | 96% | 54,447 psi | 85% | 3041 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 57,203 psi | 90% | 3031 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 57,203 psi | 90% | 3031 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 56,608 psi | 89% | 3025 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 86% | 56,362 psi | 88% | 3045 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 54,447 psi | 85% | 2956 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 55,129 psi | 86% | 3022 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 55,129 psi | 86% | 3035 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 53,867 psi | 84% | 3041 fps | 97.5% |
| Alliant Reloder-50 | <<locked>> | 98% | 54,070 psi | 85% | 3028 fps | 97.1% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 56,347 psi | 88% | 3002 fps | 98.2% |
| Bofors RP15 | <<locked>> | 88% | 55,767 psi | 87% | 3035 fps | 99.9% |
| Bofors RP30 | <<locked>> | 92% | 55,201 psi | 87% | 3038 fps | 99.8% |
| Bofors RP5 | <<locked>> | 86% | 56,362 psi | 88% | 3045 fps | 100% |
| Hodgdon H1000 | <<locked>> | 92% | 56,478 psi | 89% | 3045 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 54,621 psi | 86% | 2979 fps | 99.2% |
| Hodgdon H4831 SC | <<locked>> | 86% | 57,450 psi | 90% | 3025 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 57,145 psi | 90% | 2946 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 54,302 psi | 85% | 3107 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,753 psi | 59% | 2008 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 54,940 psi | 86% | 2963 fps | 99.3% |
| IMR 7828 SSC | <<locked>> | 86% | 54,157 psi | 85% | 3031 fps | 99.5% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 57,508 psi | 90% | 3081 fps | 99.9% |
| Lovex S071 | <<locked>> | 90% | 54,360 psi | 85% | 2923 fps | 100% |
| Norma 217 | <<locked>> | 98% | 54,868 psi | 86% | 3045 fps | 100% |
| Norma MRP | <<locked>> | 84% | 56,391 psi | 88% | 3058 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 55,535 psi | 87% | 3051 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 88% | 54,331 psi | 85% | 2976 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,696 psi | 61% | 2054 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 55,492 psi | 87% | 3091 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 54,911 psi | 86% | 3051 fps | 99.2% |
| Rottweil R 904 | <<locked>> | 84% | 57,363 psi | 90% | 3009 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 84% | 56,420 psi | 88% | 3018 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 56,043 psi | 88% | 3015 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 55,274 psi | 87% | 2936 fps | 99.3% |
| Somchem S385 | <<locked>> | 84% | 56,637 psi | 89% | 2982 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 56,971 psi | 89% | 2969 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 56,463 psi | 88% | 2986 fps | 96.6% |
| Vihtavuori N555 | <<locked>> | 84% | 56,057 psi | 88% | 2986 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 55,724 psi | 87% | 3058 fps | 99.4% |
| Vihtavuori N565 | <<locked>> | 90% | 57,319 psi | 90% | 3054 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 92% | 55,274 psi | 87% | 3058 fps | 98.9% |
| Vihtavuori N570 | <<locked>> | 94% | 56,695 psi | 89% | 3120 fps | 97.7% |
| Winchester StaBALL HD | <<locked>> | 86% | 54,940 psi | 86% | 3038 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 56,652 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% | 45,658 psi | 72% | 2785 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 47,790 psi | 75% | 2913 fps | 97.6% |
| ADI AR 2209 | <<locked>> | 80% | 49,705 psi | 78% | 2917 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 80% | 44,918 psi | 70% | 2858 fps | 98% |
| ADI AR 2217 | <<locked>> | 82% | 35,839 psi | 56% | 2648 fps | 95.4% |
| ADI AR 2218 | 94.7 gr | 94% | 48,051 psi | 75% | 2979 fps | 96.1% |
| ADI AR 2225 | <<locked>> | 80% | 30,864 psi | 48% | 2549 fps | 96.3% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 49,980 psi | 78% | 2917 fps | 99.5% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 49,980 psi | 78% | 2917 fps | 99.5% |
| Alliant Reloder-19 | <<locked>> | 80% | 49,516 psi | 78% | 2910 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 80% | 45,716 psi | 72% | 2861 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 80% | 44,498 psi | 70% | 2802 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 38,667 psi | 61% | 2740 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 51,111 psi | 80% | 2972 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 46,180 psi | 72% | 2900 fps | 95.4% |
| Alliant Reloder-50 | <<locked>> | 96% | 49,951 psi | 78% | 2956 fps | 96% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 46,122 psi | 72% | 2822 fps | 95.7% |
| Bofors RP15 | <<locked>> | 80% | 42,554 psi | 67% | 2799 fps | 98.3% |
| Bofors RP30 | <<locked>> | 80% | 36,100 psi | 57% | 2664 fps | 95.6% |
| Bofors RP5 | <<locked>> | 80% | 45,716 psi | 72% | 2861 fps | 99% |
| Hodgdon H1000 | <<locked>> | 80% | 36,390 psi | 57% | 2664 fps | 96.3% |
| Hodgdon H4831 | <<locked>> | 80% | 47,471 psi | 74% | 2858 fps | 98% |
| Hodgdon H4831 SC | <<locked>> | 80% | 46,601 psi | 73% | 2841 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 53,359 psi | 84% | 2897 fps | 100% |
| Hodgdon Retumbo | 76.1 gr | 80% | 37,724 psi | 59% | 2779 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,297 psi | 44% | 1804 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 48,182 psi | 76% | 2848 fps | 98.3% |
| IMR 7828 SSC | <<locked>> | 80% | 43,656 psi | 68% | 2838 fps | 97.7% |
| IMR 8133 Enduron | <<locked>> | 86% | 35,114 psi | 55% | 2648 fps | 95% |
| Lovex S071 | <<locked>> | 80% | 39,276 psi | 62% | 2661 fps | 99.3% |
| Norma 217 | <<locked>> | 82% | 30,734 psi | 48% | 2549 fps | 95.3% |
| Norma MRP | <<locked>> | 80% | 48,907 psi | 77% | 2936 fps | 99.9% |
| Ramshot Grand | <<locked>> | 80% | 44,063 psi | 69% | 2851 fps | 98.1% |
| Ramshot Magnum | <<locked>> | 80% | 39,914 psi | 63% | 2723 fps | 98.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,051 psi | 46% | 1847 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 37,449 psi | 59% | 2753 fps | 98.9% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 40,234 psi | 63% | 2772 fps | 95.6% |
| Rottweil R 904 | <<locked>> | 80% | 50,183 psi | 79% | 2890 fps | 99% |
| Rottweil R 905 | <<locked>> | 80% | 49,182 psi | 77% | 2900 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 48,834 psi | 77% | 2894 fps | 99.5% |
| Somchem S361 | <<locked>> | 80% | 51,474 psi | 81% | 2874 fps | 98.8% |
| Somchem S385 | <<locked>> | 80% | 49,617 psi | 78% | 2874 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 80% | 43,453 psi | 68% | 2746 fps | 99% |
| Vihtavuori N170 | <<locked>> | 90% | 52,837 psi | 83% | 2923 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 80% | 49,081 psi | 77% | 2877 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 48,414 psi | 76% | 2930 fps | 98.3% |
| Vihtavuori N565 | <<locked>> | 80% | 40,408 psi | 63% | 2743 fps | 96.4% |
| Vihtavuori N568 | <<locked>> | 84% | 41,234 psi | 65% | 2792 fps | 95.3% |
| Vihtavuori N570 | 88.9 gr | 90% | 48,994 psi | 77% | 2982 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 43,584 psi | 68% | 2861 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 45,876 psi | 72% | 2802 fps | 99% |
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 51 powders for 7 mm Rem. Ultra Mag. loaded with the .283 | 140gr | Frontier PH HPBT. 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 51 of the 51 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 1:10.0 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 .283 | 140gr | Frontier PH HPBT 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.