Load data for .300 Win. Mag. + 150gr Sierra SBT GameKing
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 | 150gr | SBT GameKing
Cartridge:.300 Win. Mag. load data
Case Length (L3):2.620" | 66.5 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.371" | 9.4 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. + 150gr Sierra SBT 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) |
|---|---|---|---|---|---|
| 70.4 gr | 3.340" | 24.0" | 2974 fps | ••• | |
| 80.3 gr | 3.340" | 24.0" | 2968 fps | ••• | |
| 63.6 gr | 3.340" | 24.0" | 2995 fps | ••• | |
| ••• | 3.340" | 24.0" | 3070 fps | ••• | |
| ••• | 3.340" | 24.0" | 2933 fps | ••• | |
| ••• | 3.340" | 24.0" | 3011 fps | ••• | |
| ••• | 3.340" | 24.0" | 3090 fps | ••• | |
| ••• | 3.340" | 24.0" | 2913 fps | ••• | |
| ••• | 3.340" | 24.0" | 2991 fps | ••• | |
| ••• | 3.340" | 24.0" | 2792 fps | ••• | |
| ••• | 3.340" | 24.0" | 2857 fps | ••• | |
| ••• | 3.340" | 24.0" | 2930 fps | ••• | |
| ••• | 3.340" | 24.0" | 2876 fps | ••• | |
| ••• | 3.340" | 24.0" | 2937 fps | ••• | |
| ••• | 3.340" | 24.0" | 3012 fps | ••• | |
| ••• | 3.340" | 24.0" | 3096 fps | ••• | |
| ••• | 3.340" | 24.0" | 2812 fps | ••• | |
| ••• | 3.340" | 24.0" | 2900 fps | ••• | |
| ••• | 3.340" | 24.0" | 3054 fps | ••• | |
| ••• | 3.340" | 24.0" | 2769 fps | ••• | |
| ••• | 3.340" | 24.0" | 2844 fps | ••• | |
| ••• | 3.340" | 24.0" | 2929 fps | ••• | |
| ••• | 3.340" | 24.0" | 2967 fps | ••• | |
| ••• | 3.340" | 24.0" | 3040 fps | ••• | |
| ••• | 3.340" | 24.0" | 2777 fps | ••• | |
| ••• | 3.340" | 24.0" | 2853 fps | ••• | |
| ••• | 3.340" | 24.0" | 2935 fps | ••• | |
| ••• | 3.340" | 24.0" | 3015 fps | ••• | |
| ••• | 3.340" | 24.0" | 2930 fps | ••• | |
| ••• | 3.340" | 24.0" | 3000 fps | ••• | |
| ••• | 3.340" | 24.0" | 3075 fps | ••• | |
| ••• | 3.340" | 24.0" | 3153 fps | ••• | |
| ••• | 3.340" | 24.0" | 2743 fps | ••• | |
| ••• | 3.340" | 24.0" | 2831 fps | ••• | |
| ••• | 3.340" | 24.0" | 2927 fps | ••• | |
| ••• | 3.340" | 24.0" | 2781 fps | ••• | |
| ••• | 3.340" | 24.0" | 2862 fps | ••• | |
| ••• | 3.340" | 24.0" | 2947 fps | ••• | |
| ••• | 3.340" | 24.0" | 3033 fps | ••• | |
| ••• | 3.340" | 24.0" | 2801 fps | ••• | |
| ••• | 3.340" | 24.0" | 2886 fps | ••• | |
| ••• | 3.340" | 24.0" | 2980 fps | ••• | |
| ••• | 3.340" | 24.5" | 3003 fps | ••• | |
| ••• | 3.340" | 24.5" | 2893 fps | ••• | |
| ••• | 3.340" | 24.5" | 2865 fps | ••• | |
| ••• | 3.340" | 24.0" | 2782 fps | ••• | |
| ••• | 3.340" | 24.0" | 2846 fps | ••• | |
| ••• | 3.340" | 24.5" | 2871 fps | ••• | |
| ••• | 3.340" | 24.0" | 2917 fps | ••• | |
| ••• | 3.340" | 24.0" | 3002 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.