Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 128gr | Brenneke TUG Nature Plus bullet and 56 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, Vihtavuori N568 and Alliant Reloder-33.
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.
A valid access license is required to use the Personalized Load Calculator.
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>> | 88% | 55,898 psi | 88% | 3045 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 55,288 psi | 87% | 3143 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 86% | 57,479 psi | 90% | 3146 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 88% | 56,173 psi | 88% | 3153 fps | 99.3% |
| ADI AR 2217 | <<locked>> | 96% | 55,071 psi | 86% | 3120 fps | 99.6% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 56,260 psi | 88% | 3222 fps | 97.6% |
| ADI AR 2225 | <<locked>> | 98% | 54,288 psi | 85% | 3136 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 57,203 psi | 90% | 3140 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 56,927 psi | 89% | 3130 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 88% | 56,521 psi | 89% | 3146 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 88% | 54,346 psi | 85% | 3058 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 92% | 54,955 psi | 86% | 3123 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 84% | 55,187 psi | 86% | 3136 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 53,606 psi | 84% | 3127 fps | 96.8% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 53,447 psi | 84% | 3104 fps | 96.2% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 57,130 psi | 90% | 3104 fps | 97.7% |
| Bofors RP15 | <<locked>> | 90% | 55,709 psi | 87% | 3130 fps | 99.8% |
| Bofors RP30 | <<locked>> | 94% | 54,824 psi | 86% | 3127 fps | 99.5% |
| Bofors RP5 | <<locked>> | 88% | 56,521 psi | 89% | 3146 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 94% | 56,710 psi | 89% | 3146 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 86% | 55,129 psi | 86% | 3084 fps | 98.8% |
| Hodgdon H4831 SC | <<locked>> | 86% | 53,940 psi | 85% | 3064 fps | 98.6% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 57,435 psi | 90% | 3058 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 92% | 54,114 psi | 85% | 3202 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,362 psi | 59% | 2087 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 55,825 psi | 87% | 3064 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 56,362 psi | 88% | 3068 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 55,477 psi | 87% | 3068 fps | 99% |
| IMR 7828 SSC | <<locked>> | 88% | 54,317 psi | 85% | 3130 fps | 99.2% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 53,127 psi | 83% | 3107 fps | 99.3% |
| Lovex S070 | <<locked>> | 82% | 57,725 psi | 90% | 3094 fps | 100% |
| Lovex S071 | <<locked>> | 92% | 54,099 psi | 85% | 3018 fps | 100% |
| Norma 204 | <<locked>> | 82% | 57,319 psi | 90% | 3123 fps | 99.8% |
| Norma 217ᴾ | <<locked>> | 100% | 54,186 psi | 85% | 3130 fps | 100% |
| Norma MRP | <<locked>> | 86% | 56,579 psi | 89% | 3163 fps | 100% |
| Ramshot Grand | <<locked>> | 88% | 55,680 psi | 87% | 3153 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 82% | 57,305 psi | 90% | 3120 fps | 100% |
| Ramshot Magnum | <<locked>> | 90% | 54,462 psi | 85% | 3077 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,377 psi | 60% | 2136 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 55,390 psi | 87% | 3189 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 54,882 psi | 86% | 3140 fps | 98.7% |
| Rottweil R 904 | <<locked>> | 84% | 54,215 psi | 85% | 3054 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 86% | 56,637 psi | 89% | 3123 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 82% | 57,725 psi | 90% | 3094 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 56,246 psi | 88% | 3117 fps | 99.8% |
| Somchem S361 | <<locked>> | 84% | 55,883 psi | 88% | 3038 fps | 98.9% |
| Somchem S365 | <<locked>> | 82% | 55,782 psi | 87% | 3061 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 56,971 psi | 89% | 3087 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 57,261 psi | 90% | 3071 fps | 100% |
| Vihtavuori N555 | <<locked>> | 86% | 55,883 psi | 88% | 3087 fps | 100% |
| Vihtavuori N560 | <<locked>> | 86% | 55,985 psi | 88% | 3159 fps | 99% |
| Vihtavuori N565 | <<locked>> | 92% | 57,174 psi | 90% | 3146 fps | 99.4% |
| Vihtavuori N568 | <<locked>> | 94% | 55,100 psi | 86% | 3146 fps | 98.3% |
| Vihtavuori N570 | <<locked>> | 96% | 56,463 psi | 88% | 3209 fps | 97% |
| Winchester StaBALL HD | <<locked>> | 88% | 54,491 psi | 85% | 3136 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 57,246 psi | 90% | 3084 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% | 42,177 psi | 66% | 2812 fps | 99.4% |
| Accurate MAGPRO | <<locked>> | 80% | 44,193 psi | 69% | 2933 fps | 95.8% |
| ADI AR 2209 | <<locked>> | 80% | 46,615 psi | 73% | 2959 fps | 98.6% |
| ADI AR 2213 | <<locked>> | 80% | 41,771 psi | 65% | 2884 fps | 96.3% |
| ADI AR 2217 | <<locked>> | 86% | 38,232 psi | 60% | 2789 fps | 95.5% |
| ADI AR 2218 | <<locked>> | 96% | 48,095 psi | 75% | 3058 fps | 95% |
| ADI AR 2225 | <<locked>> | 84% | 32,489 psi | 51% | 2674 fps | 96.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 53,534 psi | 84% | 3084 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 46,470 psi | 73% | 2949 fps | 98.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 42,438 psi | 67% | 2887 fps | 97.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 41,060 psi | 64% | 2835 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 35,505 psi | 56% | 2753 fps | 98.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 46,963 psi | 74% | 3002 fps | 100% |
| Alliant Reloder-33 | 97.9 gr | 94% | 49,632 psi | 78% | 3054 fps | 95.6% |
| Alliant Reloder-50 | <<locked>> | 98% | 49,298 psi | 77% | 3028 fps | 95% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 49,806 psi | 78% | 2979 fps | 95.9% |
| Bofors RP15 | <<locked>> | 80% | 39,291 psi | 62% | 2815 fps | 96.6% |
| Bofors RP30 | <<locked>> | 84% | 38,145 psi | 60% | 2799 fps | 95.5% |
| Bofors RP5 | <<locked>> | 80% | 42,438 psi | 67% | 2887 fps | 97.7% |
| Hodgdon H1000 | <<locked>> | 82% | 36,274 psi | 57% | 2743 fps | 95.3% |
| Hodgdon H4831 | <<locked>> | 80% | 44,411 psi | 70% | 2887 fps | 96.4% |
| Hodgdon H4831 SC | <<locked>> | 80% | 43,598 psi | 68% | 2871 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 50,140 psi | 79% | 2953 fps | 100% |
| Hodgdon Retumbo | 77.2 gr | 80% | 34,563 psi | 54% | 2779 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,036 psi | 44% | 1880 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 52,272 psi | 82% | 3009 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 52,678 psi | 83% | 3015 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 45,498 psi | 71% | 2887 fps | 96.9% |
| IMR 7828 SSC | <<locked>> | 80% | 40,408 psi | 63% | 2861 fps | 95.8% |
| IMR 8133 Enduron | <<locked>> | 92% | 39,769 psi | 62% | 2844 fps | 96% |
| Lovex S070 | <<locked>> | 80% | 54,085 psi | 85% | 3041 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 35,969 psi | 56% | 2674 fps | 98% |
| Norma 204 | <<locked>> | 80% | 53,359 psi | 84% | 3061 fps | 99.5% |
| Norma 217 | <<locked>> | 88% | 34,650 psi | 54% | 2736 fps | 96.3% |
| Norma MRP | <<locked>> | 80% | 45,266 psi | 71% | 2963 fps | 99.3% |
| Ramshot Grand | <<locked>> | 80% | 40,437 psi | 63% | 2864 fps | 96.3% |
| Ramshot Hunter | <<locked>> | 80% | 53,417 psi | 84% | 3061 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 36,419 psi | 57% | 2730 fps | 96.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,718 psi | 45% | 1923 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 34,069 psi | 53% | 2746 fps | 96.8% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 43,004 psi | 67% | 2917 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 47,326 psi | 74% | 2933 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 80% | 45,919 psi | 72% | 2936 fps | 98.5% |
| Shooters World SW4350 | <<locked>> | 80% | 54,085 psi | 85% | 3041 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 45,585 psi | 71% | 2930 fps | 98.5% |
| Somchem S361 | <<locked>> | 80% | 48,573 psi | 76% | 2913 fps | 97.6% |
| Somchem S365 | <<locked>> | 80% | 51,982 psi | 81% | 3009 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 46,354 psi | 73% | 2910 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 80% | 40,451 psi | 63% | 2776 fps | 97.7% |
| Vihtavuori N555 | <<locked>> | 80% | 45,556 psi | 71% | 2920 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 44,933 psi | 70% | 2956 fps | 96.7% |
| Vihtavuori N565 | <<locked>> | 82% | 39,798 psi | 62% | 2815 fps | 95.3% |
| Vihtavuori N568 | 88.6 gr | 88% | 43,961 psi | 69% | 2933 fps | 95.4% |
| Vihtavuori N570 | <<locked>> | 94% | 52,330 psi | 82% | 3133 fps | 95.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 39,363 psi | 62% | 2877 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 42,757 psi | 67% | 2831 fps | 97.8% |
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 56 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 128gr | Brenneke TUG Nature Plus. ADI AR 2218 delivers the highest muzzle velocity at 3,222 fps; across all powders the maximum-charge window runs from 2,087 fps to 3,222 fps. ADI AR 2218 gives the best case fill at 100 %, and 56 of the 56 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 128.0 gr projectile in 0.284" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. ADI AR 2218, Alliant Reloder-50, Hodgdon TrailBoss 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, Vihtavuori N568, Alliant Reloder-33 rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 128gr | Brenneke TUG Nature Plus 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.