Load data for .300 H&H Mag. + 125gr Sierra SPT Pro-Hunter
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:0.308" | 7.8 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:Stabilizes in any common twist
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Community Loads for .300 H&H Mag. + 125gr Sierra SPT Pro-Hunter
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) |
|---|---|---|---|---|---|
| 66.8 gr | 3.600" | 26.0" | 3183 fps | ••• | |
| 69.2 gr | 3.600" | 26.0" | 3282 fps | ••• | |
| 71.5 gr | 3.600" | 26.0" | 3377 fps | ••• | |
| ••• | 3.600" | 26.0" | 3133 fps | ••• | |
| ••• | 3.600" | 26.0" | 3247 fps | ••• | |
| ••• | 3.600" | 26.0" | 3276 fps | ••• | |
| ••• | 3.600" | 26.0" | 3073 fps | ••• | |
| ••• | 3.600" | 26.0" | 3159 fps | ••• | |
| ••• | 3.600" | 26.0" | 3241 fps | ••• | |
| ••• | 3.600" | 26.0" | 3327 fps | ••• | |
| ••• | 3.600" | 26.0" | 3057 fps | ••• | |
| ••• | 3.600" | 26.0" | 3141 fps | ••• | |
| ••• | 3.600" | 26.0" | 3217 fps | ••• | |
| ••• | 3.600" | 26.0" | 3297 fps | ••• | |
| ••• | 3.600" | 26.0" | 3375 fps | ••• | |
| ••• | 3.600" | 26.0" | 3211 fps | ••• | |
| ••• | 3.600" | 26.0" | 3296 fps | ••• | |
| ••• | 3.600" | 26.0" | 3145 fps | ••• | |
| ••• | 3.600" | 26.0" | 3238 fps | ••• | |
| ••• | 3.600" | 26.0" | 3329 fps | ••• | |
| ••• | 3.600" | 26.0" | 3100 fps | ••• | |
| ••• | 3.600" | 26.0" | 3200 fps | ••• | |
| ••• | 3.600" | 26.0" | 3302 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.