Load data for .300 H&H Mag. + 172gr Speer Impact
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 | 172gr | Impact
Cartridge:.300 H&H Mag. load data
Case Length (L3):2.850" | 72.4 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.626" | 15.9 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:1:11.5
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Community Loads for .300 H&H Mag. + 172gr Speer Impact
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) |
|---|---|---|---|---|---|
| 62.2 gr | 3.580" | 24.0" | 2822 fps | ••• | |
| 61.5 gr | 3.580" | 24.0" | 2763 fps | ••• | |
| 66.0 gr | 3.580" | 24.0" | 2589 fps | ••• | |
| ••• | 3.580" | 24.0" | 2917 fps | ••• | |
| ••• | 3.580" | 24.0" | 2496 fps | ••• | |
| ••• | 3.580" | 24.0" | 2848 fps | ••• | |
| ••• | 3.580" | 24.0" | 2670 fps | ••• | |
| ••• | 3.580" | 24.0" | 2950 fps | ••• | |
| ••• | 3.580" | 24.0" | 2569 fps | ••• | |
| ••• | 3.580" | 24.0" | 2873 fps | ••• | |
| ••• | 3.580" | 24.0" | 2924 fps | ••• | |
| ••• | 3.580" | 24.0" | 2627 fps | ••• | |
| ••• | 3.580" | 24.0" | 2884 fps | ••• | |
| ••• | 3.580" | 24.0" | 2726 fps | ••• | |
| ••• | 3.580" | 24.0" | 2606 fps | ••• | |
| ••• | 3.580" | 24.0" | 2919 fps | ••• | |
| ••• | 3.580" | 24.0" | 2711 fps | ••• | |
| ••• | 3.580" | 24.0" | 3057 fps | ••• | |
| ••• | 3.580" | 24.0" | 2773 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.