Load data for .300 Win. Mag. + 165gr Speer Hot-Cor
Based on C.I.P., the max. allowed case length is 2.620 in / 66.55 mm, the max. cartridge length is 3.340 in / 84.84 mm, and the max. allowed pressure is 62,366 PSI / 4,300 bar.

Based on C.I.P., the max. allowed case length is 2.620 in / 66.55 mm, the max. cartridge length is 3.340 in / 84.84 mm, and the max. allowed pressure is 62,366 PSI / 4,300 bar.

Load Specifications
ImperialMetric
Bullet:.308 | 165gr | Hot-Cor
Cartridge:.300 Win. Mag. load data
Case Length (L3):2.620" | 66.5 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.420" | 10.7 mm
Case Capacity:90.5 gow | 5.86 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:1:14.5
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Community Loads for .300 Win. Mag. + 165gr Speer Hot-Cor
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) |
|---|---|---|---|---|---|
| 72.0 gr | 3.340" | — | 2736 fps | ••• | |
| 76.0 gr | 3.340" | — | 2883 fps | ••• | |
| 69.0 gr | 3.340" | — | 2911 fps | ••• | |
| ••• | 3.340" | — | 3056 fps | ••• | |
| ••• | 3.340" | — | 2881 fps | ••• | |
| ••• | 3.340" | — | 2802 fps | ••• | |
| ••• | 3.340" | — | 3059 fps | ••• | |
| ••• | 3.340" | — | 2835 fps | ••• | |
| ••• | 3.340" | — | 2985 fps | ••• | |
| ••• | 3.340" | — | 2812 fps | ••• | |
| ••• | 3.340" | — | 2968 fps | ••• | |
| ••• | 3.340" | — | 2827 fps | ••• | |
| ••• | 3.340" | — | 3086 fps | ••• | |
| ••• | 3.340" | — | 2760 fps | ••• | |
| ••• | 3.340" | — | 2788 fps | ••• | |
| ••• | 3.340" | 24.0" | 2827 fps | ••• | |
| ••• | 3.340" | — | 2908 fps | ••• | |
| ••• | 3.340" | 24.0" | 3031 fps | ••• | |
| ••• | 3.340" | — | 2819 fps | ••• | |
| ••• | 3.340" | 24.0" | 2840 fps | ••• | |
| ••• | 3.340" | 24.0" | 2987 fps | ••• | |
| ••• | 3.340" | 24.0" | 2764 fps | ••• | |
| ••• | 3.340" | 24.0" | 2898 fps | ••• | |
| ••• | 3.340" | — | 2802 fps | ••• | |
| ••• | 3.340" | — | 2956 fps | ••• | |
| ••• | 3.340" | 24.0" | 2768 fps | ••• | |
| ••• | 3.340" | 24.0" | 2974 fps | ••• | |
| ••• | 3.340" | — | 2863 fps | ••• | |
| ••• | 3.340" | 24.0" | 2817 fps | ••• | |
| ••• | 3.340" | — | 2889 fps | ••• | |
| ••• | 3.340" | 24.0" | 3006 fps | ••• | |
| ••• | 3.340" | — | 3030 fps | ••• | |
| ••• | 3.340" | 24.0" | 2833 fps | ••• | |
| ••• | 3.340" | 24.0" | 3033 fps | ••• | |
| ••• | 3.340" | — | 2867 fps | ••• | |
| ••• | 3.340" | 24.0" | 2903 fps | ••• | |
| ••• | 3.340" | — | 3006 fps | ••• | |
| ••• | 3.340" | 24.0" | 3082 fps | ••• | |
| ••• | 3.340" | 24.0" | 2812 fps | ••• | |
| ••• | 3.340" | 24.0" | 2992 fps | ••• | |
| ••• | 3.340" | 24.0" | 2817 fps | ••• | |
| ••• | 3.340" | 24.0" | 3090 fps | ••• | |
| ••• | 3.340" | — | 2858 fps | ••• | |
| ••• | 3.340" | — | 2999 fps | ••• | |
| ••• | 3.340" | 24.0" | 2801 fps | ••• | |
| ••• | 3.340" | 24.0" | 2981 fps | ••• | |
| ••• | 3.340" | — | 2915 fps | ••• | |
| ••• | 3.340" | 24.0" | 2834 fps | ••• | |
| ••• | 3.340" | — | 3037 fps | ••• | |
| ••• | 3.340" | 24.0" | 3056 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.