Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 127gr | Geco ZERO LG bullet and 63 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 2213.
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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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>> | 90% | 57,638 psi | 90% | 3081 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 57,537 psi | 90% | 3114 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 56,985 psi | 89% | 3182 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 86% | 55,201 psi | 87% | 3120 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 88% | 53,679 psi | 84% | 3123 fps | 98.9% |
| ADI AR 2217 | <<locked>> | 98% | 56,420 psi | 88% | 3150 fps | 99.6% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 53,534 psi | 84% | 3179 fps | 96.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 55,274 psi | 87% | 3169 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 55,013 psi | 86% | 3120 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 54,752 psi | 86% | 3104 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 88% | 54,041 psi | 85% | 3117 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 90% | 55,825 psi | 87% | 3091 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 56,159 psi | 88% | 3153 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 56,724 psi | 89% | 3173 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 54,969 psi | 86% | 3159 fps | 96.8% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 54,897 psi | 86% | 3074 fps | 96.9% |
| Bofors RP15 | <<locked>> | 92% | 57,159 psi | 90% | 3166 fps | 99.8% |
| Bofors RP30 | <<locked>> | 96% | 56,130 psi | 88% | 3159 fps | 99.5% |
| Bofors RP5 | <<locked>> | 88% | 54,041 psi | 85% | 3117 fps | 99.6% |
| Hodgdon H1000 | <<locked>> | 94% | 54,056 psi | 85% | 3114 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 88% | 56,739 psi | 89% | 3117 fps | 98.8% |
| Hodgdon H4831 SC | <<locked>> | 88% | 55,651 psi | 87% | 3100 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 55,158 psi | 86% | 3035 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 55,230 psi | 87% | 3235 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,347 psi | 59% | 2083 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 57,624 psi | 90% | 3100 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 54,172 psi | 85% | 3048 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 57,232 psi | 90% | 3100 fps | 99% |
| IMR 7828 SSC | <<locked>> | 90% | 55,782 psi | 87% | 3163 fps | 99.2% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 50,314 psi | 79% | 3071 fps | 98.7% |
| Lovex S065 | <<locked>> | 82% | 57,493 psi | 90% | 3081 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 55,898 psi | 88% | 3077 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 55,303 psi | 87% | 3045 fps | 100% |
| Norma 204 | <<locked>> | 82% | 55,100 psi | 86% | 3097 fps | 99.5% |
| Norma 217ᴾ | <<locked>> | 100% | 51,256 psi | 80% | 3097 fps | 99.9% |
| Norma MRP | <<locked>> | 86% | 53,998 psi | 85% | 3133 fps | 100% |
| Norma URP | <<locked>> | 82% | 55,854 psi | 88% | 3094 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 57,217 psi | 90% | 3186 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 82% | 55,013 psi | 86% | 3094 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 55,970 psi | 88% | 3107 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,203 psi | 60% | 2129 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 57,029 psi | 89% | 3163 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 56,753 psi | 89% | 3222 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 56,028 psi | 88% | 3173 fps | 98.8% |
| Rottweil R 904 | <<locked>> | 86% | 55,811 psi | 87% | 3087 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 86% | 54,302 psi | 85% | 3094 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 82% | 57,493 psi | 90% | 3081 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 55,898 psi | 88% | 3077 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 56,579 psi | 89% | 3028 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 53,925 psi | 85% | 3091 fps | 99.6% |
| Somchem S361 | <<locked>> | 86% | 57,740 psi | 90% | 3071 fps | 99% |
| Somchem S365 | <<locked>> | 84% | 57,377 psi | 90% | 3097 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 54,795 psi | 86% | 3064 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 82% | 57,406 psi | 90% | 3084 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 54,969 psi | 86% | 3045 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 82% | 56,826 psi | 89% | 3087 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 57,363 psi | 90% | 3120 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 57,711 psi | 90% | 3196 fps | 99.1% |
| Vihtavuori N565 | <<locked>> | 92% | 54,592 psi | 86% | 3114 fps | 98.9% |
| Vihtavuori N568 | <<locked>> | 96% | 56,333 psi | 88% | 3176 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 57,377 psi | 90% | 3028 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 90% | 55,622 psi | 87% | 3169 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 54,940 psi | 86% | 3058 fps | 99.6% |
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% | 40,379 psi | 63% | 2782 fps | 98.9% |
| Accurate 4350 | <<locked>> | 80% | 53,679 psi | 84% | 3058 fps | 100% |
| Accurate MAGPRO | <<locked>> | 82% | 45,426 psi | 71% | 2969 fps | 96% |
| ADI AR 2209 | <<locked>> | 80% | 44,759 psi | 70% | 2930 fps | 97.9% |
| ADI AR 2213 | 75.3 gr | 80% | 40,059 psi | 63% | 2851 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 88% | 39,262 psi | 62% | 2818 fps | 95.6% |
| ADI AR 2218 | <<locked>> | 98% | 49,458 psi | 78% | 3097 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 86% | 33,330 psi | 52% | 2707 fps | 96.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 51,358 psi | 80% | 3061 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 44,701 psi | 70% | 2923 fps | 98% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,625 psi | 64% | 2861 fps | 96.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 39,117 psi | 61% | 2808 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 33,837 psi | 53% | 2723 fps | 98% |
| Alliant Reloder-26 | <<locked>> | 80% | 44,527 psi | 70% | 2972 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 50,575 psi | 79% | 3084 fps | 95.7% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 48,051 psi | 75% | 2953 fps | 95.1% |
| Bofors RP15 | <<locked>> | 80% | 37,695 psi | 59% | 2789 fps | 95.7% |
| Bofors RP30 | <<locked>> | 86% | 38,972 psi | 61% | 2831 fps | 95.6% |
| Bofors RP5 | <<locked>> | 80% | 40,625 psi | 64% | 2861 fps | 96.9% |
| Hodgdon H1000 | <<locked>> | 84% | 37,333 psi | 59% | 2776 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 80% | 42,714 psi | 67% | 2861 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 80% | 41,901 psi | 66% | 2844 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 48,124 psi | 75% | 2930 fps | 100% |
| Hodgdon Retumbo | 76.7 gr | 82% | 35,389 psi | 55% | 2812 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,905 psi | 44% | 1873 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 50,488 psi | 79% | 2986 fps | 99.6% |
| IMR 4831 | <<locked>> | 80% | 50,691 psi | 79% | 2992 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 43,903 psi | 69% | 2861 fps | 96.2% |
| IMR 7828 SSC | <<locked>> | 82% | 41,655 psi | 65% | 2897 fps | 96% |
| IMR 8133 Enduron | <<locked>> | 94% | 40,422 psi | 63% | 2871 fps | 96% |
| Lovex S065 | <<locked>> | 80% | 53,751 psi | 84% | 3025 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 52,402 psi | 82% | 3022 fps | 99.9% |
| Lovex S071 | <<locked>> | 80% | 34,374 psi | 54% | 2648 fps | 97.3% |
| Norma 204 | <<locked>> | 80% | 51,343 psi | 80% | 3035 fps | 99.1% |
| Norma 217 | <<locked>> | 88% | 32,663 psi | 51% | 2697 fps | 95% |
| Norma MRP | <<locked>> | 80% | 43,192 psi | 68% | 2933 fps | 98.8% |
| Norma URP | <<locked>> | 80% | 52,257 psi | 82% | 3038 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 38,609 psi | 61% | 2835 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 51,343 psi | 80% | 3035 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 34,606 psi | 54% | 2697 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,572 psi | 45% | 1919 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 52,823 psi | 83% | 3097 fps | 100% |
| ReloadSwiss RS 76 | 80.1 gr | 80% | 32,300 psi | 51% | 2703 fps | 95.5% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 44,063 psi | 69% | 2953 fps | 95.9% |
| Rottweil R 904 | <<locked>> | 80% | 45,585 psi | 71% | 2904 fps | 97.2% |
| Rottweil R 905 | <<locked>> | 80% | 44,092 psi | 69% | 2907 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 80% | 53,751 psi | 84% | 3025 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 52,402 psi | 82% | 3022 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 52,779 psi | 83% | 2972 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 43,743 psi | 69% | 2900 fps | 97.8% |
| Somchem S361 | <<locked>> | 80% | 46,760 psi | 73% | 2887 fps | 96.9% |
| Somchem S365 | <<locked>> | 80% | 49,821 psi | 78% | 2989 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 44,585 psi | 70% | 2884 fps | 98.7% |
| Vihtavuori N160 | <<locked>> | 80% | 53,722 psi | 84% | 3031 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 38,812 psi | 61% | 2749 fps | 97% |
| Vihtavuori N550 | <<locked>> | 80% | 53,055 psi | 83% | 3031 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 43,526 psi | 68% | 2894 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 42,960 psi | 67% | 2923 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 84% | 40,828 psi | 64% | 2848 fps | 95.4% |
| Vihtavuori N568 | <<locked>> | 90% | 44,976 psi | 70% | 2969 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 53,403 psi | 84% | 2972 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 36,941 psi | 58% | 2844 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 41,089 psi | 64% | 2805 fps | 97.1% |
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 63 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 127gr | Geco ZERO LG. Hodgdon Retumbo delivers the highest muzzle velocity at 3,235 fps; across all powders the maximum-charge window runs from 2,083 fps to 3,235 fps. ADI AR 2218 gives the best case fill at 100 %, and 63 of the 63 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 127.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. ADI AR 2218, ADI AR 2225, 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, ReloadSwiss RS 76, ADI AR 2213 rank at the top here: for 7 mm Rem. Ultra Mag. with the .284 | 127gr | Geco ZERO LG 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.