Load Specifications
Bullet Manufacturer:Peregrine
Bullet Weight:154 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Caliber:.300 Rem. Ultra Mag. load data
Case Length (l3):2.85"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:112.5 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:64,977 psi
Recommended Twist Rate:1:12.0
Load data in caliber .300 Rem. Ultra Mag. with .308 | 154gr | Peregrine VLR5 (VLR-5) bullet and 149 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Norma MRP 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.
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>> | 94% | 56,173 psi | 86% | 2995 fps | 100% |
| Accurate 3100 | <<locked>> | 94% | 56,797 psi | 87% | 3005 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 57,029 psi | 88% | 3041 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 57,551 psi | 89% | 3048 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 54,868 psi | 84% | 3100 fps | 98.5% |
| Accurate MAGPRO | <<locked>> | 92% | 55,259 psi | 85% | 3087 fps | 97.5% |
| Accurate MAGPRO | <<locked>> | 92% | 56,057 psi | 86% | 3104 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 82% | 57,711 psi | 89% | 3009 fps | 100% |
| ADI AR 2208 | <<locked>> | 82% | 58,189 psi | 90% | 3018 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 58,537 psi | 90% | 3100 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 90% | 55,187 psi | 85% | 3051 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 94% | 56,434 psi | 87% | 3100 fps | 98.6% |
| ADI AR 2213 | <<locked>> | 94% | 57,043 psi | 88% | 3107 fps | 98.7% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 50,821 psi | 78% | 2989 fps | 98% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 51,329 psi | 79% | 2999 fps | 98.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 45,353 psi | 70% | 2940 fps | 99.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 46,006 psi | 71% | 2953 fps | 99.5% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 55,288 psi | 85% | 3041 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 88% | 58,146 psi | 89% | 3100 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 86% | 54,926 psi | 85% | 3054 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 55,521 psi | 85% | 3058 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 56,246 psi | 87% | 3068 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 58,001 psi | 89% | 3084 fps | 99.5% |
| Alliant Reloder-19 | <<locked>> | 92% | 58,436 psi | 90% | 3094 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 56,434 psi | 87% | 3091 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 94% | 57,101 psi | 88% | 3100 fps | 99.5% |
| Alliant Reloder-23 | <<locked>> | 96% | 57,783 psi | 89% | 3068 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 96% | 58,465 psi | 90% | 3074 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 57,580 psi | 89% | 3123 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 58,247 psi | 90% | 3133 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 58,726 psi | 90% | 3153 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 55,259 psi | 85% | 3104 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 58,247 psi | 90% | 3051 fps | 96.5% |
| Bofors RP15 | <<locked>> | 96% | 55,390 psi | 85% | 3074 fps | 99.2% |
| Bofors RP15 | <<locked>> | 96% | 56,202 psi | 86% | 3087 fps | 99.3% |
| Bofors RP30ᴾ | <<locked>> | 100% | 53,359 psi | 82% | 3058 fps | 98.6% |
| Bofors RP30ᴾ | <<locked>> | 100% | 53,954 psi | 83% | 3068 fps | 98.8% |
| Bofors RP5 | <<locked>> | 94% | 56,434 psi | 87% | 3091 fps | 99.4% |
| Bofors RP5 | <<locked>> | 94% | 57,101 psi | 88% | 3100 fps | 99.5% |
| Bofors RP7 | <<locked>> | 84% | 55,608 psi | 86% | 2992 fps | 99.6% |
| Bofors RP7 | <<locked>> | 84% | 56,072 psi | 86% | 2999 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 56,260 psi | 87% | 3084 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 57,000 psi | 88% | 3094 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 84% | 55,143 psi | 85% | 3038 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 84% | 55,637 psi | 86% | 3048 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 84% | 57,754 psi | 89% | 3054 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 84% | 58,204 psi | 90% | 3064 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 92% | 56,260 psi | 87% | 3038 fps | 98% |
| Hodgdon H4831 | <<locked>> | 92% | 56,840 psi | 87% | 3048 fps | 98.2% |
| Hodgdon H4831 SC | <<locked>> | 92% | 55,042 psi | 85% | 3018 fps | 97.8% |
| Hodgdon H4831 SC | <<locked>> | 92% | 55,637 psi | 86% | 3028 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 58,421 psi | 90% | 3018 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 55,187 psi | 85% | 2972 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 56,333 psi | 87% | 3199 fps | 99.9% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 57,174 psi | 88% | 3209 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 56,057 psi | 86% | 3071 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 84% | 56,695 psi | 87% | 3081 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,854 psi | 57% | 1982 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,912 psi | 57% | 1985 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 57,493 psi | 88% | 3025 fps | 99.8% |
| IMR 4350 | <<locked>> | 88% | 58,117 psi | 89% | 3038 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 57,159 psi | 88% | 3015 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 84% | 57,595 psi | 89% | 3025 fps | 99.9% |
| IMR 4831 | <<locked>> | 88% | 57,392 psi | 88% | 3028 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 58,088 psi | 89% | 3041 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 57,058 psi | 88% | 3022 fps | 98.3% |
| IMR 4955 Enduron | <<locked>> | 92% | 57,595 psi | 89% | 3031 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 96% | 58,233 psi | 90% | 3136 fps | 98.9% |
| IMR 7828 SSC | <<locked>> | 94% | 54,824 psi | 84% | 3084 fps | 98.5% |
| Lovex S065 | <<locked>> | 86% | 57,624 psi | 89% | 3009 fps | 100% |
| Lovex S065 | <<locked>> | 86% | 58,305 psi | 90% | 3018 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 55,883 psi | 86% | 3005 fps | 99.9% |
| Lovex S070 | <<locked>> | 86% | 56,521 psi | 87% | 3015 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 57,450 psi | 88% | 3015 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 58,073 psi | 89% | 3025 fps | 100% |
| Norma 204 | <<locked>> | 86% | 54,926 psi | 85% | 3022 fps | 99% |
| Norma 204 | <<locked>> | 86% | 55,564 psi | 86% | 3035 fps | 99.1% |
| Norma 217ᴾ | <<locked>> | 100% | 40,683 psi | 63% | 2854 fps | 97.6% |
| Norma 217ᴾ | <<locked>> | 100% | 41,365 psi | 64% | 2867 fps | 97.9% |
| Norma MRP | <<locked>> | 92% | 56,434 psi | 87% | 3114 fps | 99.9% |
| Norma MRP | <<locked>> | 92% | 57,072 psi | 88% | 3123 fps | 99.9% |
| Norma URP | <<locked>> | 86% | 55,419 psi | 85% | 3025 fps | 100% |
| Norma URP | <<locked>> | 86% | 56,130 psi | 86% | 3035 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 55,056 psi | 85% | 3091 fps | 98.8% |
| Ramshot Grand | <<locked>> | 94% | 55,695 psi | 86% | 3100 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 88% | 58,494 psi | 90% | 3081 fps | 100% |
| Ramshot Hunter | <<locked>> | 86% | 55,158 psi | 85% | 3035 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 58,160 psi | 90% | 3084 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 96% | 54,462 psi | 84% | 3031 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,594 psi | 58% | 2028 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,637 psi | 58% | 2031 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 57,522 psi | 89% | 3064 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 58,204 psi | 90% | 3071 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 56,115 psi | 86% | 3091 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 56,811 psi | 87% | 3100 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 57,841 psi | 89% | 3192 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 54,259 psi | 84% | 3136 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 52,765 psi | 81% | 3068 fps | 97.4% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 53,534 psi | 82% | 3081 fps | 97.6% |
| Rottweil R 903 | <<locked>> | 82% | 56,768 psi | 87% | 2992 fps | 100% |
| Rottweil R 903 | <<locked>> | 82% | 57,305 psi | 88% | 2999 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 55,709 psi | 86% | 3009 fps | 98.4% |
| Rottweil R 904 | <<locked>> | 90% | 56,115 psi | 86% | 3018 fps | 98.6% |
| Rottweil R 905 | <<locked>> | 92% | 57,392 psi | 88% | 3074 fps | 99.5% |
| Rottweil R 905 | <<locked>> | 92% | 58,001 psi | 89% | 3084 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 84% | 55,608 psi | 86% | 2992 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 84% | 56,072 psi | 86% | 2999 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 57,624 psi | 89% | 3009 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 86% | 58,305 psi | 90% | 3018 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 55,883 psi | 86% | 3005 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 56,521 psi | 87% | 3015 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 56,579 psi | 87% | 2871 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 56,913 psi | 88% | 2874 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 57,203 psi | 88% | 2963 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 57,566 psi | 89% | 2969 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 56,942 psi | 88% | 3068 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 57,566 psi | 89% | 3077 fps | 99.5% |
| Somchem S355 | <<locked>> | 82% | 56,463 psi | 87% | 2989 fps | 100% |
| Somchem S355 | <<locked>> | 82% | 56,956 psi | 88% | 2995 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 57,595 psi | 89% | 2995 fps | 98.2% |
| Somchem S361 | <<locked>> | 90% | 58,117 psi | 89% | 3005 fps | 98.3% |
| Somchem S365 | <<locked>> | 88% | 56,072 psi | 86% | 3025 fps | 100% |
| Somchem S365 | <<locked>> | 88% | 56,840 psi | 87% | 3035 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 57,870 psi | 89% | 3041 fps | 99.8% |
| Somchem S385 | <<locked>> | 92% | 58,479 psi | 90% | 3051 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 84% | 57,943 psi | 89% | 2956 fps | 100% |
| Vihtavuori N150 | <<locked>> | 84% | 58,421 psi | 90% | 2963 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 57,319 psi | 88% | 3015 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 57,798 psi | 89% | 3022 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 57,667 psi | 89% | 3018 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 96% | 58,247 psi | 90% | 3028 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 86% | 56,652 psi | 87% | 3018 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 57,087 psi | 88% | 3025 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 55,883 psi | 86% | 3041 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 56,376 psi | 87% | 3048 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 56,159 psi | 86% | 3107 fps | 98.2% |
| Vihtavuori N560 | <<locked>> | 92% | 56,768 psi | 87% | 3117 fps | 98.4% |
| Vihtavuori N565 | <<locked>> | 98% | 56,304 psi | 87% | 3081 fps | 98.5% |
| Vihtavuori N565 | <<locked>> | 98% | 57,072 psi | 88% | 3094 fps | 98.6% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 53,447 psi | 82% | 3074 fps | 96.9% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 54,244 psi | 83% | 3087 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 57,464 psi | 88% | 2969 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 58,044 psi | 89% | 2976 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 55,347 psi | 85% | 3041 fps | 99.8% |
| Winchester 760 | <<locked>> | 84% | 55,840 psi | 86% | 3051 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 96% | 56,289 psi | 87% | 3143 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 57,130 psi | 88% | 3153 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 58,334 psi | 90% | 3041 fps | 99.5% |
| Winchester Supreme 780 | <<locked>> | 92% | 54,708 psi | 84% | 2986 fps | 99.1% |
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% | 34,142 psi | 53% | 2589 fps | 96.5% |
| Accurate 3100 | <<locked>> | 80% | 34,577 psi | 53% | 2598 fps | 96.7% |
| Accurate 4350 | <<locked>> | 80% | 46,064 psi | 71% | 2867 fps | 99.9% |
| Accurate 4350 | <<locked>> | 80% | 46,601 psi | 72% | 2877 fps | 99.9% |
| Accurate High Country | <<locked>> | 84% | 43,932 psi | 68% | 2897 fps | 95.9% |
| Accurate MAGPRO | <<locked>> | 88% | 47,630 psi | 73% | 2956 fps | 95.7% |
| Accurate MAGPRO | <<locked>> | 88% | 48,225 psi | 74% | 2963 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 80% | 54,186 psi | 83% | 2959 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 54,505 psi | 84% | 2963 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 38,508 psi | 59% | 2733 fps | 95.1% |
| ADI AR 2209 | <<locked>> | 80% | 38,783 psi | 60% | 2736 fps | 95.3% |
| ADI AR 2213 | 82.5 gr | 86% | 42,438 psi | 65% | 2841 fps | 95.1% |
| ADI AR 2213 | 82.5 gr | 86% | 42,830 psi | 66% | 2848 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 94% | 41,075 psi | 63% | 2795 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 94% | 41,553 psi | 64% | 2805 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 92% | 34,316 psi | 53% | 2677 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 92% | 34,751 psi | 53% | 2690 fps | 96% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 39,320 psi | 61% | 2743 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,193 psi | 68% | 2877 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,730 psi | 69% | 2887 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 51,503 psi | 79% | 2999 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 52,214 psi | 80% | 3009 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,522 psi | 59% | 2726 fps | 95.2% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,957 psi | 60% | 2733 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 84% | 39,624 psi | 61% | 2779 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 84% | 40,059 psi | 62% | 2792 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,808 psi | 50% | 2621 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 33,257 psi | 51% | 2631 fps | 99.3% |
| Alliant Reloder-25 | <<locked>> | 82% | 30,560 psi | 47% | 2575 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 82% | 30,922 psi | 48% | 2585 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 36,361 psi | 56% | 2756 fps | 98.6% |
| Alliant Reloder-26 | <<locked>> | 80% | 36,840 psi | 57% | 2766 fps | 98.7% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 54,592 psi | 84% | 2992 fps | 95.6% |
| Bofors RP15 | <<locked>> | 86% | 39,262 psi | 60% | 2769 fps | 95.5% |
| Bofors RP15 | <<locked>> | 86% | 39,813 psi | 61% | 2782 fps | 95.7% |
| Bofors RP30 | <<locked>> | 92% | 39,987 psi | 62% | 2802 fps | 95.1% |
| Bofors RP30 | <<locked>> | 92% | 40,408 psi | 62% | 2812 fps | 95.3% |
| Bofors RP5 | <<locked>> | 84% | 39,624 psi | 61% | 2779 fps | 95.7% |
| Bofors RP5 | <<locked>> | 84% | 40,059 psi | 62% | 2792 fps | 96% |
| Bofors RP7 | <<locked>> | 80% | 48,776 psi | 75% | 2877 fps | 98.8% |
| Bofors RP7 | <<locked>> | 80% | 49,052 psi | 75% | 2884 fps | 98.9% |
| Hodgdon H1000 | <<locked>> | 90% | 39,160 psi | 60% | 2756 fps | 95% |
| Hodgdon H1000 | <<locked>> | 90% | 39,610 psi | 61% | 2766 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 80% | 47,921 psi | 74% | 2917 fps | 99% |
| Hodgdon H414 | <<locked>> | 80% | 48,399 psi | 74% | 2927 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 80% | 50,488 psi | 78% | 2940 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 80% | 50,952 psi | 78% | 2946 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 86% | 45,368 psi | 70% | 2848 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 86% | 45,948 psi | 71% | 2861 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 86% | 44,527 psi | 69% | 2831 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 86% | 44,933 psi | 69% | 2838 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,539 psi | 64% | 2756 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 42,061 psi | 65% | 2766 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 36,753 psi | 57% | 2789 fps | 95.3% |
| Hodgdon Retumbo | <<locked>> | 88% | 37,246 psi | 57% | 2799 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 47,964 psi | 74% | 2936 fps | 98.9% |
| Hodgdon Superformance | <<locked>> | 80% | 48,602 psi | 75% | 2946 fps | 99.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,572 psi | 42% | 1781 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,543 psi | 42% | 1785 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,324 psi | 68% | 2802 fps | 98% |
| IMR 4350 | <<locked>> | 80% | 44,614 psi | 69% | 2808 fps | 98.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,299 psi | 77% | 2907 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,560 psi | 78% | 2913 fps | 99.3% |
| IMR 4831 | <<locked>> | 80% | 43,859 psi | 68% | 2812 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 44,309 psi | 68% | 2822 fps | 99.8% |
| IMR 4955 Enduron | <<locked>> | 84% | 43,874 psi | 68% | 2789 fps | 95.2% |
| IMR 4955 Enduron | <<locked>> | 84% | 44,237 psi | 68% | 2799 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 88% | 43,656 psi | 67% | 2877 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 88% | 44,208 psi | 68% | 2887 fps | 95.9% |
| Lovex S065 | <<locked>> | 80% | 47,543 psi | 73% | 2848 fps | 99.6% |
| Lovex S065 | <<locked>> | 80% | 48,022 psi | 74% | 2858 fps | 99.7% |
| Lovex S070 | <<locked>> | 80% | 45,847 psi | 71% | 2835 fps | 98.8% |
| Lovex S070 | <<locked>> | 80% | 46,325 psi | 71% | 2844 fps | 98.9% |
| Lovex S071 | <<locked>> | 82% | 31,212 psi | 48% | 2513 fps | 95.2% |
| Lovex S071 | <<locked>> | 82% | 31,502 psi | 48% | 2520 fps | 95.3% |
| Norma 204 | <<locked>> | 80% | 44,440 psi | 68% | 2835 fps | 96.9% |
| Norma 204 | <<locked>> | 80% | 44,860 psi | 69% | 2844 fps | 97.1% |
| Norma 217 | <<locked>> | 96% | 35,215 psi | 54% | 2723 fps | 95.5% |
| Norma 217 | <<locked>> | 96% | 35,839 psi | 55% | 2740 fps | 95.8% |
| Norma MRP | 79.3 gr | 80% | 35,926 psi | 55% | 2720 fps | 95.8% |
| Norma MRP | 79.3 gr | 80% | 36,506 psi | 56% | 2733 fps | 96.1% |
| Norma URP | <<locked>> | 80% | 45,165 psi | 70% | 2854 fps | 99.8% |
| Norma URP | <<locked>> | 80% | 45,643 psi | 70% | 2864 fps | 99.9% |
| Ramshot Grand | <<locked>> | 86% | 40,480 psi | 62% | 2815 fps | 95% |
| Ramshot Grand | <<locked>> | 86% | 41,046 psi | 63% | 2828 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 44,266 psi | 68% | 2848 fps | 99% |
| Ramshot Hunter | <<locked>> | 80% | 44,701 psi | 69% | 2854 fps | 99.1% |
| Ramshot Magnum | <<locked>> | 86% | 36,201 psi | 56% | 2687 fps | 95.5% |
| Ramshot Magnum | <<locked>> | 86% | 36,724 psi | 57% | 2697 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,152 psi | 43% | 1824 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,123 psi | 43% | 1827 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 46,354 psi | 71% | 2887 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 46,833 psi | 72% | 2894 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,715 psi | 69% | 2904 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 45,194 psi | 70% | 2910 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 33,750 psi | 52% | 2690 fps | 95.2% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 34,200 psi | 53% | 2703 fps | 95.5% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 44,817 psi | 69% | 2923 fps | 95.2% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 45,527 psi | 70% | 2936 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 52,953 psi | 81% | 2936 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 53,505 psi | 82% | 2946 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 42,656 psi | 66% | 2776 fps | 95.4% |
| Rottweil R 904 | <<locked>> | 82% | 42,917 psi | 66% | 2782 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 80% | 37,695 psi | 58% | 2707 fps | 95% |
| Rottweil R 905 | <<locked>> | 80% | 38,145 psi | 59% | 2717 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 48,776 psi | 75% | 2877 fps | 98.8% |
| Rottweil R 907 | <<locked>> | 80% | 49,052 psi | 75% | 2884 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,543 psi | 73% | 2848 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 48,022 psi | 74% | 2858 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 80% | 45,847 psi | 71% | 2835 fps | 98.8% |
| Shooters World SW4350 | <<locked>> | 80% | 46,325 psi | 71% | 2844 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 53,055 psi | 82% | 2822 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 53,388 psi | 82% | 2828 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,586 psi | 72% | 2792 fps | 98.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 47,036 psi | 72% | 2802 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 40,219 psi | 62% | 2766 fps | 96% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,826 psi | 58% | 2710 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 52,779 psi | 81% | 2933 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 53,287 psi | 82% | 2943 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 46,789 psi | 72% | 2818 fps | 95.9% |
| Somchem S361 | <<locked>> | 82% | 44,005 psi | 68% | 2762 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 42,322 psi | 65% | 2808 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 42,670 psi | 66% | 2815 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,290 psi | 59% | 2690 fps | 96.3% |
| Somchem S385 | <<locked>> | 80% | 38,711 psi | 60% | 2700 fps | 96.5% |
| Vihtavuori N150 | <<locked>> | 80% | 50,589 psi | 78% | 2854 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 51,068 psi | 79% | 2864 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,775 psi | 72% | 2854 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 47,268 psi | 73% | 2861 fps | 100% |
| Vihtavuori N165 | <<locked>> | 84% | 38,058 psi | 59% | 2671 fps | 95.8% |
| Vihtavuori N165 | <<locked>> | 82% | 35,839 psi | 55% | 2621 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 46,151 psi | 71% | 2851 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 80% | 46,601 psi | 72% | 2861 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 36,811 psi | 57% | 2700 fps | 99.1% |
| Vihtavuori N555 | <<locked>> | 80% | 37,318 psi | 57% | 2713 fps | 99.2% |
| Vihtavuori N560 | 85.2 gr | 86% | 45,136 psi | 69% | 2907 fps | 95.6% |
| Vihtavuori N560 | 85.2 gr | 86% | 45,716 psi | 70% | 2923 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 90% | 42,279 psi | 65% | 2828 fps | 95% |
| Vihtavuori N565 | <<locked>> | 90% | 42,844 psi | 66% | 2838 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 98% | 49,530 psi | 76% | 3005 fps | 95.9% |
| Vihtavuori N568 | <<locked>> | 96% | 46,572 psi | 72% | 2949 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 46,238 psi | 71% | 2808 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 46,644 psi | 72% | 2815 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 48,095 psi | 74% | 2920 fps | 99.1% |
| Winchester 760 | <<locked>> | 80% | 48,573 psi | 75% | 2930 fps | 99.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 29,153 psi | 45% | 2621 fps | 99.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 29,515 psi | 45% | 2631 fps | 99.3% |
| Winchester Supreme 780 | <<locked>> | 82% | 37,681 psi | 58% | 2671 fps | 95% |
| Winchester Supreme 780 | <<locked>> | 82% | 38,058 psi | 59% | 2677 fps | 95.2% |
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 149 powders for .300 Rem. Ultra Mag. loaded with the .308 | 154gr | Peregrine VLR5 (VLR-5). Hodgdon Retumbo delivers the highest muzzle velocity at 3,209 fps; across all powders the maximum-charge window runs from 1,982 fps to 3,209 fps. ADI AR 2217 gives the best case fill at 100 %, and 149 of the 149 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 154.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2217, ADI AR 2225 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. Vihtavuori N560, Norma MRP, ADI AR 2213 rank at the top here: for .300 Rem. Ultra Mag. with the .308 | 154gr | Peregrine VLR5 (VLR-5) 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.