Load data for .300 Win. Mag. + 165gr Sierra GameKing
The most recommended powders for this combination are ReloadSwiss RS 70, Alliant Reloder-26 and Hodgdon Superformance.
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 | GameKing
Cartridge:.300 Win. Mag. load data
Case Length (L3):2.620" | 66.5 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.530" | 13.5 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
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Community Loads for .300 Win. Mag. + 165gr Sierra GameKing
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) |
|---|---|---|---|---|---|
| 61.2 gr | 3.340" | 24.0" | 2877 fps | ••• | |
| 63.6 gr | 3.340" | 24.0" | 2963 fps | ••• | |
| 63.1 gr | 3.340" | 24.0" | 2810 fps | ••• | |
| ••• | 3.340" | 24.0" | 2903 fps | ••• | |
| ••• | 3.340" | 24.0" | 2991 fps | ••• | |
| ••• | 3.340" | 24.0" | 3069 fps | ••• | |
| ••• | 3.340" | 24.0" | 2831 fps | ••• | |
| ••• | 3.340" | 24.0" | 2910 fps | ••• | |
| ••• | 3.340" | 24.0" | 2736 fps | ••• | |
| ••• | 3.340" | 24.0" | 2806 fps | ••• | |
| ••• | 3.340" | 24.0" | 2881 fps | ••• | |
| ••• | 3.340" | 24.0" | 2957 fps | ••• | |
| ••• | 3.340" | 24.0" | 2735 fps | ••• | |
| ••• | 3.340" | 24.0" | 2810 fps | ••• | |
| ••• | 3.340" | 24.0" | 2887 fps | ••• | |
| ••• | 3.340" | 24.0" | 2850 fps | ••• | |
| ••• | 3.340" | 24.0" | 2941 fps | ••• | |
| ••• | 3.340" | 24.0" | 3029 fps | ••• | |
| ••• | 3.340" | 24.0" | 2741 fps | ••• | |
| ••• | 3.340" | 24.0" | 2828 fps | ••• | |
| ••• | 3.340" | 24.0" | 2923 fps | ••• | |
| ••• | 3.340" | 24.0" | 3025 fps | ••• | |
| ••• | 3.340" | 24.0" | 2967 fps | ••• | |
| ••• | 3.340" | 24.0" | 2689 fps | ••• | |
| ••• | 3.340" | 24.0" | 2770 fps | ••• | |
| ••• | 3.340" | 24.0" | 2852 fps | ••• | |
| ••• | 3.340" | 24.0" | 2935 fps | ••• | |
| ••• | 3.340" | 24.0" | 2680 fps | ••• | |
| ••• | 3.340" | 24.0" | 2762 fps | ••• | |
| ••• | 3.340" | 24.0" | 2842 fps | ••• | |
| ••• | 3.340" | 24.0" | 2925 fps | ••• | |
| ••• | 3.340" | 24.0" | 2890 fps | ••• | |
| ••• | 3.340" | 24.0" | 2966 fps | ••• | |
| ••• | 3.340" | 24.0" | 2628 fps | ••• | |
| ••• | 3.340" | 24.0" | 2707 fps | ••• | |
| ••• | 3.340" | 24.0" | 2793 fps | ••• | |
| ••• | 3.340" | 24.0" | 2883 fps | ••• | |
| ••• | 3.340" | 24.0" | 2980 fps | ••• | |
| ••• | 3.340" | 24.0" | 2803 fps | ••• | |
| ••• | 3.340" | 24.0" | 2883 fps | ••• | |
| ••• | 3.340" | 24.0" | 2971 fps | ••• | |
| ••• | 3.340" | 24.0" | 3065 fps | ••• | |
| ••• | 3.340" | 24.0" | 2743 fps | ••• | |
| ••• | 3.340" | 24.0" | 2819 fps | ••• | |
| ••• | 3.340" | 24.0" | 2905 fps | ••• | |
| ••• | 3.340" | 24.0" | 2734 fps | ••• | |
| ••• | 3.340" | 24.0" | 2804 fps | ••• | |
| ••• | 3.340" | 24.0" | 2877 fps | ••• | |
| ••• | 3.340" | 24.0" | 2954 fps | ••• | |
| ••• | 3.340" | 24.0" | 3039 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.