Load data for .300 H&H Mag. + 155gr 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:0.543" | 13.8 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
Min. Twist Rate:1:12.5
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Community Loads for .300 H&H Mag. + 155gr 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) |
|---|---|---|---|---|---|
| 63.9 gr | 3.600" | 26.0" | 3050 fps | ••• | |
| 66.6 gr | 3.600" | 26.0" | 3157 fps | ••• | |
| 74.0 gr | 3.600" | 26.0" | 3089 fps | ••• | |
| ••• | 3.600" | 26.0" | 3033 fps | ••• | |
| ••• | 3.600" | 26.0" | 2954 fps | ••• | |
| ••• | 3.600" | 26.0" | 3047 fps | ••• | |
| ••• | 3.600" | 26.0" | 2922 fps | ••• | |
| ••• | 3.600" | 26.0" | 3018 fps | ••• | |
| ••• | 3.600" | 26.0" | 3110 fps | ••• | |
| ••• | 3.600" | 26.0" | 3069 fps | ••• | |
| ••• | 3.600" | 26.0" | 3161 fps | ••• | |
| ••• | 3.600" | 26.0" | 2923 fps | ••• | |
| ••• | 3.600" | 26.0" | 3014 fps | ••• | |
| ••• | 3.600" | 26.0" | 3108 fps | ••• | |
| ••• | 3.600" | 26.0" | 2879 fps | ••• | |
| ••• | 3.600" | 26.0" | 2983 fps | ••• | |
| ••• | 3.600" | 26.0" | 3087 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.