Load data for .300 Rem. Ultra Mag. + 165gr 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 | 165gr | Boat-Tail
Cartridge:.300 Rem. Ultra Mag. load data
Case Length (L3):2.850" | 72.4 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.439" | 11.2 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:1:13.5
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Community Loads for .300 Rem. Ultra Mag. + 165gr 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) |
|---|---|---|---|---|---|
| 92.0 gr | 3.600" | — | 3033 fps | ••• | |
| 87.0 gr | 3.600" | — | 3022 fps | ••• | |
| 89.0 gr | 3.600" | — | 3010 fps | ••• | |
| ••• | 3.600" | — | 3127 fps | ••• | |
| ••• | 3.600" | — | 3039 fps | ••• | |
| ••• | 3.600" | — | 2963 fps | ••• | |
| ••• | 3.600" | — | 3080 fps | ••• | |
| ••• | 3.600" | — | 3200 fps | ••• | |
| ••• | 3.600" | — | 3003 fps | ••• | |
| ••• | 3.600" | — | 2968 fps | ••• | |
| ••• | 3.600" | — | 3090 fps | ••• | |
| ••• | 3.600" | — | 3031 fps | ••• | |
| ••• | 3.600" | — | 3019 fps | ••• | |
| ••• | 3.600" | — | 3134 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.