Load data for .300 H&H Mag. + 175gr Sierra Tipped MatchKing
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:0.610" | 15.5 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. + 175gr Sierra Tipped MatchKing
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) |
|---|---|---|---|---|---|
| 59.2 gr | 3.600" | 26.0" | 2817 fps | ••• | |
| 61.8 gr | 3.600" | 26.0" | 2917 fps | ••• | |
| 65.5 gr | 3.600" | 26.0" | 2721 fps | ••• | |
| ••• | 3.600" | 26.0" | 2807 fps | ••• | |
| ••• | 3.600" | 26.0" | 2899 fps | ••• | |
| ••• | 3.600" | 26.0" | 2986 fps | ••• | |
| ••• | 3.600" | 26.0" | 2853 fps | ••• | |
| ••• | 3.600" | 26.0" | 2742 fps | ••• | |
| ••• | 3.600" | 26.0" | 2825 fps | ••• | |
| ••• | 3.600" | 26.0" | 2905 fps | ••• | |
| ••• | 3.600" | 26.0" | 2632 fps | ••• | |
| ••• | 3.600" | 26.0" | 2719 fps | ••• | |
| ••• | 3.600" | 26.0" | 2806 fps | ••• | |
| ••• | 3.600" | 26.0" | 2892 fps | ••• | |
| ••• | 3.600" | 26.0" | 2759 fps | ••• | |
| ••• | 3.600" | 26.0" | 2849 fps | ••• | |
| ••• | 3.600" | 26.0" | 2937 fps | ••• | |
| ••• | 3.600" | 26.0" | 2829 fps | ••• | |
| ••• | 3.600" | 26.0" | 2925 fps | ••• | |
| ••• | 3.600" | 26.0" | 2780 fps | ••• | |
| ••• | 3.600" | 26.0" | 2886 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.