Load data for .300 Rem. Ultra Mag. + 180gr Nosler Partition
The most recommended powders for this combination are IMR 4350.
Based on C.I.P., the max. allowed case length is 2.850 in / 72.39 mm, the max. cartridge length is 3.600 in / 91.44 mm, and the max. allowed pressure is 64,977 PSI / 4,480 bar.
Based on C.I.P., the max. allowed case length is 2.850 in / 72.39 mm, the max. cartridge length is 3.600 in / 91.44 mm, and the max. allowed pressure is 64,977 PSI / 4,480 bar.
Load Specifications
ImperialMetric
Bullet:.308 | 180gr | Partition
Cartridge:.300 Rem. Ultra Mag. load data
Case Length (L3):2.850" | 72.4 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.561" | 14.3 mm
Case Capacity:112.5 gow | 7.29 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):64,977 psi | 4,480 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:14.5
Get PRO license to unlock all data and calculators
Community Loads for .300 Rem. Ultra Mag. + 180gr Nosler Partition
Real loads for this combination shared by our community. Charge weights are only fully visible with an active Pro licence.
| Powder | Charge (gr) | C.O.L. | Barrel Length | Velocity (fps) | Pressure (psi) |
|---|---|---|---|---|---|
| 90.0 gr | 3.460" | 24.0" | 2973 fps | ••• | |
| 92.0 gr | 3.460" | 24.0" | 3033 fps | ••• | |
| 100.0 gr | 3.460" | 24.0" | 2896 fps | ••• | |
| ••• | 3.460" | 24.0" | 2963 fps | ••• | |
| ••• | 3.460" | 24.0" | 2868 fps | ••• | |
| ••• | 3.460" | 24.0" | 2930 fps | ••• | |
| ••• | 3.460" | 24.0" | 2990 fps | ••• | |
| ••• | 3.460" | 24.0" | 3027 fps | ••• | |
| ••• | 3.460" | 24.0" | 3089 fps | ••• | |
| ••• | 3.574" | — | 2831 fps | ••• | |
| ••• | 3.460" | 24.0" | 2893 fps | ••• | |
| ••• | 3.460" | 24.0" | 2955 fps | ••• | |
| ••• | 3.460" | 24.0" | 3016 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.