Load data for .300 H&H Mag. + 165gr Sierra Tipped GameKing
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
Cartridge:.300 H&H Mag. load data
Case Length (L3):2.850" | 72.4 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.631" | 16.0 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:1:12.0
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Community Loads for .300 H&H Mag. + 165gr Sierra Tipped GameKing
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) |
|---|---|---|---|---|---|
| 58.4 gr | 3.600" | 26.0" | 2812 fps | ••• | |
| 60.8 gr | 3.600" | 26.0" | 2906 fps | ••• | |
| 63.2 gr | 3.600" | 26.0" | 3000 fps | ••• | |
| ••• | 3.600" | 26.0" | 2826 fps | ••• | |
| ••• | 3.600" | 26.0" | 2921 fps | ••• | |
| ••• | 3.600" | 26.0" | 3023 fps | ••• | |
| ••• | 3.600" | 26.0" | 2915 fps | ••• | |
| ••• | 3.600" | 26.0" | 2808 fps | ••• | |
| ••• | 3.600" | 26.0" | 2895 fps | ••• | |
| ••• | 3.600" | 26.0" | 2983 fps | ••• | |
| ••• | 3.600" | 26.0" | 2732 fps | ••• | |
| ••• | 3.600" | 26.0" | 2821 fps | ••• | |
| ••• | 3.600" | 26.0" | 2902 fps | ••• | |
| ••• | 3.600" | 26.0" | 2988 fps | ••• | |
| ••• | 3.600" | 26.0" | 3069 fps | ••• | |
| ••• | 3.600" | 26.0" | 2865 fps | ••• | |
| ••• | 3.600" | 26.0" | 2950 fps | ••• | |
| ••• | 3.600" | 26.0" | 3038 fps | ••• | |
| ••• | 3.600" | 26.0" | 2883 fps | ••• | |
| ••• | 3.600" | 26.0" | 2982 fps | ••• | |
| ••• | 3.600" | 26.0" | 2782 fps | ••• | |
| ••• | 3.600" | 26.0" | 2872 fps | ••• | |
| ••• | 3.600" | 26.0" | 2964 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.