Load data for .300 H&H Mag. + 190gr Nosler Custom Competition
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:0.595" | 15.1 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. + 190gr Nosler Custom Competition
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) |
|---|---|---|---|---|---|
| 63.0 gr | 3.580" | 24.0" | 2617 fps | ••• | |
| 67.0 gr | 3.580" | 24.0" | 2771 fps | ••• | |
| 68.0 gr | 3.580" | 24.0" | 2639 fps | ••• | |
| ••• | 3.580" | 24.0" | 2795 fps | ••• | |
| ••• | 3.580" | 24.0" | 2636 fps | ••• | |
| ••• | 3.580" | 24.0" | 2571 fps | ••• | |
| ••• | 3.580" | 24.0" | 2618 fps | ••• | |
| ••• | 3.580" | 24.0" | 2527 fps | ••• | |
| ••• | 3.580" | 24.0" | 2678 fps | ••• | |
| ••• | 3.580" | 24.0" | 2721 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.