Load data for .300 H&H Mag. + 165gr Sierra GameKing
The most recommended powders for this combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 60.
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 | 165gr | GameKing
Cartridge:.300 H&H Mag. load data
Case Length (L3):2.850" | 72.4 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.504" | 12.8 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
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Community Loads for .300 H&H Mag. + 165gr Sierra 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) |
|---|---|---|---|---|---|
| 60.8 gr | 3.600" | 26.0" | 2860 fps | ••• | |
| 63.2 gr | 3.600" | 26.0" | 2951 fps | ••• | |
| 65.5 gr | 3.600" | 26.0" | 3039 fps | ••• | |
| ••• | 3.600" | 26.0" | 2769 fps | ••• | |
| ••• | 3.600" | 26.0" | 2864 fps | ••• | |
| ••• | 3.600" | 26.0" | 2961 fps | ••• | |
| ••• | 3.600" | 26.0" | 3055 fps | ••• | |
| ••• | 3.600" | 26.0" | 2854 fps | ••• | |
| ••• | 3.600" | 26.0" | 2939 fps | ••• | |
| ••• | 3.600" | 26.0" | 2687 fps | ••• | |
| ••• | 3.600" | 26.0" | 2773 fps | ••• | |
| ••• | 3.600" | 26.0" | 2852 fps | ••• | |
| ••• | 3.600" | 26.0" | 2936 fps | ••• | |
| ••• | 3.600" | 26.0" | 3016 fps | ••• | |
| ••• | 3.600" | 26.0" | 2817 fps | ••• | |
| ••• | 3.600" | 26.0" | 2901 fps | ••• | |
| ••• | 3.600" | 26.0" | 2987 fps | ••• | |
| ••• | 3.600" | 26.0" | 3068 fps | ••• | |
| ••• | 3.600" | 26.0" | 2939 fps | ••• | |
| ••• | 3.600" | 26.0" | 2828 fps | ••• | |
| ••• | 3.600" | 26.0" | 2919 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.