Load data for .300 Win. Mag. + 155gr Sierra Tipped MatchKing
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
Cartridge:.300 Win. Mag. load data
Case Length (L3):2.620" | 66.5 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.543" | 13.8 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:1:12.5
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Community Loads for .300 Win. Mag. + 155gr Sierra Tipped MatchKing
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) |
|---|---|---|---|---|---|
| 59.5 gr | 3.340" | 24.0" | 2880 fps | ••• | |
| 61.6 gr | 3.340" | 24.0" | 2961 fps | ••• | |
| 63.6 gr | 3.340" | 24.0" | 3035 fps | ••• | |
| ••• | 3.340" | 24.0" | 3110 fps | ••• | |
| ••• | 3.340" | 24.0" | 2987 fps | ••• | |
| ••• | 3.340" | 24.0" | 3068 fps | ••• | |
| ••• | 3.340" | 24.0" | 3146 fps | ••• | |
| ••• | 3.340" | 24.0" | 2883 fps | ••• | |
| ••• | 3.340" | 24.0" | 2968 fps | ••• | |
| ••• | 3.340" | 24.0" | 3047 fps | ••• | |
| ••• | 3.340" | 24.0" | 3128 fps | ••• | |
| ••• | 3.340" | 24.0" | 2860 fps | ••• | |
| ••• | 3.340" | 24.0" | 2927 fps | ••• | |
| ••• | 3.340" | 24.0" | 3003 fps | ••• | |
| ••• | 3.340" | 24.0" | 2926 fps | ••• | |
| ••• | 3.340" | 24.0" | 2990 fps | ••• | |
| ••• | 3.340" | 24.0" | 3065 fps | ••• | |
| ••• | 3.340" | 24.0" | 3151 fps | ••• | |
| ••• | 3.340" | 24.0" | 2880 fps | ••• | |
| ••• | 3.340" | 24.0" | 2971 fps | ••• | |
| ••• | 3.340" | 24.0" | 3070 fps | ••• | |
| ••• | 3.340" | 24.0" | 2996 fps | ••• | |
| ••• | 3.340" | 24.0" | 3091 fps | ••• | |
| ••• | 3.340" | 24.0" | 2820 fps | ••• | |
| ••• | 3.340" | 24.0" | 2896 fps | ••• | |
| ••• | 3.340" | 24.0" | 2978 fps | ••• | |
| ••• | 3.340" | 24.0" | 2859 fps | ••• | |
| ••• | 3.340" | 24.0" | 2929 fps | ••• | |
| ••• | 3.340" | 24.0" | 3004 fps | ••• | |
| ••• | 3.340" | 24.0" | 3078 fps | ••• | |
| ••• | 3.340" | 24.0" | 2827 fps | ••• | |
| ••• | 3.340" | 24.0" | 2905 fps | ••• | |
| ••• | 3.340" | 24.0" | 2990 fps | ••• | |
| ••• | 3.340" | 24.0" | 3070 fps | ••• | |
| ••• | 3.340" | 24.0" | 2977 fps | ••• | |
| ••• | 3.340" | 24.0" | 3048 fps | ••• | |
| ••• | 3.340" | 24.0" | 2802 fps | ••• | |
| ••• | 3.340" | 24.0" | 2891 fps | ••• | |
| ••• | 3.340" | 24.0" | 2988 fps | ••• | |
| ••• | 3.340" | 24.0" | 2858 fps | ••• | |
| ••• | 3.340" | 24.0" | 2940 fps | ••• | |
| ••• | 3.340" | 24.0" | 3026 fps | ••• | |
| ••• | 3.340" | 24.0" | 3116 fps | ••• | |
| ••• | 3.340" | 24.0" | 2857 fps | ••• | |
| ••• | 3.340" | 24.0" | 2946 fps | ••• | |
| ••• | 3.340" | 24.0" | 3038 fps | ••• | |
| ••• | 3.340" | 24.0" | 2853 fps | ••• | |
| ••• | 3.340" | 24.0" | 2922 fps | ••• | |
| ••• | 3.340" | 24.0" | 2995 fps | ••• | |
| ••• | 3.340" | 24.0" | 3078 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.