Load data for .300 WSM + 150gr Sierra MatchKing
Based on C.I.P., the max. allowed case length is 2.100 in / 53.34 mm, the max. cartridge length is 2.860 in / 72.64 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Based on C.I.P., the max. allowed case length is 2.100 in / 53.34 mm, the max. cartridge length is 2.860 in / 72.64 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Load Specifications
ImperialMetric
Bullet:.308 | 150gr | MatchKing
Cartridge:.300 WSM load data
Case Length (L3):2.090" | 53.1 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.458" | 11.6 mm
Case Capacity:81.3 gow | 5.27 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):63,817 psi | 4,400 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:14.5
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Community Loads for .300 WSM + 150gr Sierra 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) |
|---|---|---|---|---|---|
| 65.1 gr | 2.860" | 24.0" | 2804 fps | ••• | |
| 67.2 gr | 2.860" | 24.0" | 2892 fps | ••• | |
| 69.3 gr | 2.860" | 24.0" | 2984 fps | ••• | |
| ••• | 2.860" | 24.0" | 3072 fps | ••• | |
| ••• | 2.860" | 24.0" | 3163 fps | ••• | |
| ••• | 2.860" | 24.0" | 2773 fps | ••• | |
| ••• | 2.860" | 24.0" | 2864 fps | ••• | |
| ••• | 2.860" | 24.0" | 2952 fps | ••• | |
| ••• | 2.860" | 24.0" | 3042 fps | ••• | |
| ••• | 2.860" | 24.0" | 2694 fps | ••• | |
| ••• | 2.860" | 24.0" | 2784 fps | ••• | |
| ••• | 2.860" | 24.0" | 2882 fps | ••• | |
| ••• | 2.860" | 24.0" | 2986 fps | ••• | |
| ••• | 2.860" | 24.0" | 2863 fps | ••• | |
| ••• | 2.860" | 24.0" | 2973 fps | ••• | |
| ••• | 2.860" | 24.0" | 3074 fps | ••• | |
| ••• | 2.860" | 24.0" | 2753 fps | ••• | |
| ••• | 2.860" | 24.0" | 2858 fps | ••• | |
| ••• | 2.860" | 24.0" | 2973 fps | ••• | |
| ••• | 2.860" | 24.0" | 3096 fps | ••• | |
| ••• | 2.860" | 24.0" | 3164 fps | ••• | |
| ••• | 2.860" | 24.0" | 2838 fps | ••• | |
| ••• | 2.860" | 24.0" | 2759 fps | ••• | |
| ••• | 2.860" | 24.0" | 2844 fps | ••• | |
| ••• | 2.860" | 24.0" | 2932 fps | ••• | |
| ••• | 2.860" | 24.0" | 3024 fps | ••• | |
| ••• | 2.860" | 24.0" | 2869 fps | ••• | |
| ••• | 2.860" | 24.0" | 2975 fps | ••• | |
| ••• | 2.860" | 24.0" | 3086 fps | ••• | |
| ••• | 2.860" | 24.0" | 3146 fps | ••• | |
| ••• | 2.860" | 24.0" | 2572 fps | ••• | |
| ••• | 2.860" | 24.0" | 2701 fps | ••• | |
| ••• | 2.860" | 24.0" | 2815 fps | ••• | |
| ••• | 2.860" | 24.0" | 2682 fps | ••• | |
| ••• | 2.860" | 24.0" | 2786 fps | ••• | |
| ••• | 2.860" | 24.0" | 2885 fps | ••• | |
| ••• | 2.860" | 24.0" | 2983 fps | ••• | |
| ••• | 2.860" | 24.0" | 2697 fps | ••• | |
| ••• | 2.860" | 24.0" | 2792 fps | ••• | |
| ••• | 2.860" | 24.0" | 2881 fps | ••• | |
| ••• | 2.860" | 24.0" | 2971 fps | ••• | |
| ••• | 2.860" | 24.0" | 3062 fps | ••• | |
| ••• | 2.860" | 24.0" | 3106 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.