Load data for .300 Rem. Ultra Mag. + 150gr Speer Boat-Tail
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 | 150gr | Boat-Tail
Cartridge:.300 Rem. Ultra Mag. load data
Case Length (L3):2.850" | 72.4 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.434" | 11.0 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:1:15.0
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Community Loads for .300 Rem. Ultra Mag. + 150gr Speer Boat-Tail
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 | 3.495" | — | 3160 fps | ••• | |
| 93.0 gr | 3.495" | — | 3174 fps | ••• | |
| 81.7 gr | 3.495" | — | 2857 fps | ••• | |
| ••• | 3.495" | — | 3127 fps | ••• | |
| ••• | 3.495" | — | 3142 fps | ••• | |
| ••• | 3.495" | — | 2863 fps | ••• | |
| ••• | 3.495" | — | 3133 fps | ••• | |
| ••• | 3.495" | — | 3162 fps | ••• | |
| ••• | 3.495" | — | 2988 fps | ••• | |
| ••• | 3.495" | — | 3176 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.