Load data for .300 H&H 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 62,366 PSI / 4,300 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 62,366 PSI / 4,300 bar.
Load Specifications
ImperialMetric
Bullet:.308 | 150gr | Boat-Tail
Cartridge:.300 H&H Mag. load data
Case Length (L3):2.850" | 72.4 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.429" | 10.9 mm
Case Capacity:85.9 gow | 5.57 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):62,366 psi | 4,300 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:15.0
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Community Loads for .300 H&H 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) |
|---|---|---|---|---|---|
| 68.0 gr | 3.500" | — | 2719 fps | ••• | |
| 72.0 gr | 3.500" | — | 2886 fps | ••• | |
| 64.0 gr | 3.500" | — | 2863 fps | ••• | |
| ••• | 3.500" | — | 3034 fps | ••• | |
| ••• | 3.500" | — | 2909 fps | ••• | |
| ••• | 3.500" | — | 3197 fps | ••• | |
| ••• | 3.500" | — | 2793 fps | ••• | |
| ••• | 3.500" | — | 3072 fps | ••• | |
| ••• | 3.500" | — | 2867 fps | ••• | |
| ••• | 3.500" | — | 3034 fps | ••• | |
| ••• | 3.500" | — | 2792 fps | ••• | |
| ••• | 3.500" | — | 3087 fps | ••• | |
| ••• | 3.500" | — | 2773 fps | ••• | |
| ••• | 3.500" | — | 3115 fps | ••• | |
| ••• | 3.500" | — | 2869 fps | ••• | |
| ••• | 3.500" | — | 2928 fps | ••• | |
| ••• | 3.500" | — | 2830 fps | ••• | |
| ••• | 3.500" | — | 2987 fps | ••• | |
| ••• | 3.500" | — | 2894 fps | ••• | |
| ••• | 3.500" | — | 3053 fps | ••• | |
| ••• | 3.500" | — | 3026 fps | ••• | |
| ••• | 3.500" | — | 3184 fps | ••• | |
| ••• | 3.500" | — | 2971 fps | ••• | |
| ••• | 3.500" | — | 3254 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.