Load Specifications
Load data in caliber 7 mm Rem. Ultra Mag. with .284 | 108gr | Reichenberg Spezial Jagd bullet and 61 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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 88% | 53,983 psi | 85% | 3182 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 57,609 psi | 90% | 3284 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 57,188 psi | 90% | 3340 fps | 97.9% |
| ADI AR 2209 | <<locked>> | 86% | 55,172 psi | 86% | 3284 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 90% | 57,653 psi | 90% | 3346 fps | 98.8% |
| ADI AR 2217 | <<locked>> | 98% | 56,507 psi | 89% | 3304 fps | 99.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 55,448 psi | 87% | 3323 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 54,781 psi | 86% | 3291 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 54,752 psi | 86% | 3264 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 88% | 54,172 psi | 85% | 3278 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 90% | 55,840 psi | 88% | 3258 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 56,260 psi | 88% | 3317 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 56,927 psi | 89% | 3340 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 54,955 psi | 86% | 3225 fps | 95.9% |
| Bofors RP15 | <<locked>> | 92% | 57,217 psi | 90% | 3323 fps | 99.4% |
| Bofors RP30 | <<locked>> | 96% | 56,289 psi | 88% | 3314 fps | 99% |
| Bofors RP5 | <<locked>> | 88% | 54,172 psi | 85% | 3278 fps | 99.1% |
| Hodgdon H1000 | <<locked>> | 94% | 53,998 psi | 85% | 3264 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 88% | 56,869 psi | 89% | 3278 fps | 98.1% |
| Hodgdon H4831 SC | <<locked>> | 88% | 55,709 psi | 87% | 3258 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 55,114 psi | 86% | 3209 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 55,114 psi | 86% | 3392 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,275 psi | 58% | 2247 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 57,435 psi | 90% | 3264 fps | 99.8% |
| IMR 4831 | <<locked>> | 82% | 54,259 psi | 85% | 3219 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 57,203 psi | 90% | 3261 fps | 98.3% |
| IMR 7828 SSC | <<locked>> | 90% | 55,782 psi | 87% | 3323 fps | 98.5% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 50,560 psi | 79% | 3219 fps | 97.9% |
| Lovex S065 | <<locked>> | 82% | 57,464 psi | 90% | 3255 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 55,970 psi | 88% | 3245 fps | 99.9% |
| Lovex S071 | <<locked>> | 94% | 55,753 psi | 87% | 3212 fps | 100% |
| Norma 204 | <<locked>> | 82% | 55,042 psi | 86% | 3258 fps | 99% |
| Norma 217ᴾ | <<locked>> | 100% | 51,590 psi | 81% | 3248 fps | 99.6% |
| Norma MRP | <<locked>> | 86% | 54,230 psi | 85% | 3297 fps | 99.7% |
| Norma URP | <<locked>> | 82% | 55,840 psi | 88% | 3268 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 57,072 psi | 89% | 3340 fps | 99% |
| Ramshot Hunter | <<locked>> | 82% | 54,998 psi | 86% | 3258 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 56,159 psi | 88% | 3264 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,072 psi | 60% | 2297 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 56,971 psi | 89% | 3327 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 56,855 psi | 89% | 3379 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 56,623 psi | 89% | 3327 fps | 98.1% |
| Rottweil R 904 | <<locked>> | 86% | 55,724 psi | 87% | 3248 fps | 98.4% |
| Rottweil R 905 | <<locked>> | 86% | 54,433 psi | 85% | 3258 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 82% | 57,464 psi | 90% | 3255 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 55,970 psi | 88% | 3245 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 56,478 psi | 89% | 3192 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 54,041 psi | 85% | 3251 fps | 99% |
| Somchem S361 | <<locked>> | 86% | 57,740 psi | 90% | 3228 fps | 98.3% |
| Somchem S365 | <<locked>> | 84% | 57,261 psi | 90% | 3268 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 55,013 psi | 86% | 3225 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 82% | 57,246 psi | 90% | 3255 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 54,955 psi | 86% | 3202 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 82% | 56,753 psi | 89% | 3255 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 57,493 psi | 90% | 3287 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 57,595 psi | 90% | 3353 fps | 98.4% |
| Vihtavuori N565 | <<locked>> | 92% | 54,853 psi | 86% | 3268 fps | 98.2% |
| Vihtavuori N568 | <<locked>> | 96% | 56,811 psi | 89% | 3333 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 57,537 psi | 90% | 3196 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 90% | 55,666 psi | 87% | 3333 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 54,969 psi | 86% | 3215 fps | 99.2% |
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% | 40,770 psi | 64% | 2936 fps | 98.2% |
| Accurate 4350 | <<locked>> | 80% | 53,867 psi | 84% | 3228 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 49,168 psi | 77% | 3189 fps | 95.9% |
| ADI AR 2209 | <<locked>> | 80% | 44,585 psi | 70% | 3081 fps | 96.9% |
| ADI AR 2213 | 82.6 gr | 82% | 43,004 psi | 67% | 3064 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 90% | 42,293 psi | 66% | 3028 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 88% | 36,085 psi | 57% | 2910 fps | 96.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 51,184 psi | 80% | 3228 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 44,701 psi | 70% | 3071 fps | 96.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,654 psi | 64% | 3002 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 39,233 psi | 61% | 2963 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 33,924 psi | 53% | 2858 fps | 96.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 44,730 psi | 70% | 3127 fps | 99.8% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 51,387 psi | 81% | 3163 fps | 95% |
| Bofors RP15 | <<locked>> | 82% | 40,582 psi | 64% | 2999 fps | 95.5% |
| Bofors RP30 | <<locked>> | 88% | 42,192 psi | 66% | 3038 fps | 95.5% |
| Bofors RP5 | <<locked>> | 80% | 40,654 psi | 64% | 3002 fps | 95.7% |
| Hodgdon H1000 | <<locked>> | 86% | 40,292 psi | 63% | 2982 fps | 95.3% |
| Hodgdon H4831 | <<locked>> | 82% | 45,905 psi | 72% | 3074 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 82% | 44,947 psi | 70% | 3054 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 48,182 psi | 76% | 3097 fps | 100% |
| Hodgdon Retumbo | 84.2 gr | 84% | 38,276 psi | 60% | 3022 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,920 psi | 44% | 2031 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 50,285 psi | 79% | 3146 fps | 99% |
| IMR 4831 | <<locked>> | 80% | 50,633 psi | 79% | 3156 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 43,816 psi | 69% | 3009 fps | 95% |
| IMR 7828 SSC | <<locked>> | 84% | 44,744 psi | 70% | 3110 fps | 95.8% |
| IMR 8133 Enduron | <<locked>> | 96% | 43,758 psi | 69% | 3077 fps | 96% |
| Lovex S065 | <<locked>> | 80% | 53,809 psi | 84% | 3196 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 52,388 psi | 82% | 3186 fps | 99.6% |
| Lovex S071 | <<locked>> | 80% | 34,766 psi | 54% | 2792 fps | 96.2% |
| Norma 204 | <<locked>> | 80% | 51,372 psi | 81% | 3192 fps | 98.4% |
| Norma 217 | <<locked>> | 90% | 35,578 psi | 56% | 2900 fps | 95% |
| Norma MRP | <<locked>> | 80% | 43,221 psi | 68% | 3081 fps | 97.9% |
| Norma URP | <<locked>> | 80% | 52,141 psi | 82% | 3209 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 41,742 psi | 65% | 3045 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 51,387 psi | 81% | 3199 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 82% | 37,753 psi | 59% | 2910 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,543 psi | 45% | 2077 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 52,852 psi | 83% | 3264 fps | 100% |
| ReloadSwiss RS 76 | 88 gr | 82% | 35,360 psi | 55% | 2917 fps | 95.6% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 48,240 psi | 76% | 3169 fps | 96% |
| Rottweil R 904 | <<locked>> | 80% | 45,513 psi | 71% | 3058 fps | 96.1% |
| Rottweil R 905 | <<locked>> | 80% | 44,005 psi | 69% | 3058 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 53,809 psi | 84% | 3196 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 52,388 psi | 82% | 3186 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 52,837 psi | 83% | 3133 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 43,671 psi | 68% | 3051 fps | 96.8% |
| Somchem S361 | <<locked>> | 80% | 46,963 psi | 74% | 3038 fps | 95.9% |
| Somchem S365 | <<locked>> | 80% | 49,676 psi | 78% | 3153 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 44,672 psi | 70% | 3035 fps | 97.9% |
| Vihtavuori N160 | <<locked>> | 80% | 53,650 psi | 84% | 3199 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 38,928 psi | 61% | 2890 fps | 95.9% |
| Vihtavuori N550 | <<locked>> | 80% | 53,127 psi | 83% | 3199 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 43,729 psi | 69% | 3051 fps | 99.8% |
| Vihtavuori N560 | <<locked>> | 82% | 46,340 psi | 73% | 3143 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 86% | 44,324 psi | 69% | 3064 fps | 95.4% |
| Vihtavuori N568 | <<locked>> | 92% | 48,820 psi | 77% | 3186 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 53,417 psi | 84% | 3136 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 37,057 psi | 58% | 2992 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 41,191 psi | 65% | 2949 fps | 96% |
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 67 powders for 7 mm Rem. Ultra Mag. loaded with the .284 | 108gr | Reichenberg Spezial Jagd. Hodgdon Retumbo delivers the highest muzzle velocity at 3,392 fps; across all powders the maximum-charge window runs from 2,247 fps to 3,392 fps. ADI AR 2218 gives the best case fill at 100 %, and 67 of the 67 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 108.0 gr projectile in 0.284" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. ADI AR 2218, ADI AR 2225, Alliant Reloder-50 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 | 108gr | Reichenberg Spezial Jagd they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-50, IMR 7977 Enduron, Vihtavuori N170 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.