Load data for .300 WSM + 180gr Sierra GameKing
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 | 180gr | GameKing
Cartridge:.300 WSM load data
Case Length (L3):2.090" | 53.1 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.548" | 13.9 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:1:12.5
Get PRO license to unlock all data and calculators
Community Loads for .300 WSM + 180gr 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) |
|---|---|---|---|---|---|
| 58.5 gr | 2.800" | 24.0" | 2708 fps | ••• | |
| 62.9 gr | 2.860" | 24.0" | 2696 fps | ••• | |
| 64.0 gr | 2.860" | 24.0" | 2741 fps | ••• | |
| ••• | 2.860" | 24.0" | 2786 fps | ••• | |
| ••• | 2.860" | 24.0" | 2835 fps | ••• | |
| ••• | 2.860" | 24.0" | 2879 fps | ••• | |
| ••• | 2.860" | 24.0" | 2573 fps | ••• | |
| ••• | 2.860" | 24.0" | 2625 fps | ••• | |
| ••• | 2.860" | 24.0" | 2672 fps | ••• | |
| ••• | 2.860" | 24.0" | 2723 fps | ••• | |
| ••• | 2.860" | 24.0" | 2713 fps | ••• | |
| ••• | 2.860" | 24.0" | 2611 fps | ••• | |
| ••• | 2.860" | 24.0" | 2667 fps | ••• | |
| ••• | 2.860" | 24.0" | 2723 fps | ••• | |
| ••• | 2.860" | 24.0" | 2778 fps | ••• | |
| ••• | 2.860" | 24.0" | 2835 fps | ••• | |
| ••• | 2.860" | 24.0" | 2630 fps | ••• | |
| ••• | 2.860" | 24.0" | 2692 fps | ••• | |
| ••• | 2.860" | 24.0" | 2750 fps | ••• | |
| ••• | 2.860" | 24.0" | 2568 fps | ••• | |
| ••• | 2.860" | 24.0" | 2661 fps | ••• | |
| ••• | 2.860" | 24.0" | 2702 fps | ••• | |
| ••• | 2.860" | 24.0" | 2740 fps | ••• | |
| ••• | 2.860" | 24.0" | 2781 fps | ••• | |
| ••• | 2.860" | 24.0" | 2814 fps | ••• | |
| ••• | 2.860" | 24.0" | 2609 fps | ••• | |
| ••• | 2.860" | 24.0" | 2656 fps | ••• | |
| ••• | 2.860" | 24.0" | 2705 fps | ••• | |
| ••• | 2.860" | 24.0" | 2761 fps | ••• | |
| ••• | 2.860" | 24.0" | 2820 fps | ••• | |
| ••• | 2.860" | 24.0" | 2587 fps | ••• | |
| ••• | 2.860" | 24.0" | 2636 fps | ••• | |
| ••• | 2.860" | 24.0" | 2688 fps | ••• | |
| ••• | 2.860" | 24.0" | 2736 fps | ••• | |
| ••• | 2.860" | 24.0" | 2785 fps | ••• | |
| ••• | 2.860" | 24.0" | 2912 fps | ••• | |
| ••• | 2.860" | 24.0" | 2680 fps | ••• | |
| ••• | 2.860" | 24.0" | 2727 fps | ••• | |
| ••• | 2.860" | 24.0" | 2775 fps | ••• | |
| ••• | 2.860" | 24.0" | 2830 fps | ••• | |
| ••• | 2.860" | 24.0" | 2575 fps | ••• | |
| ••• | 2.860" | 24.0" | 2698 fps | ••• | |
| ••• | 2.860" | 24.0" | 2751 fps | ••• | |
| ••• | 2.860" | 24.0" | 2797 fps | ••• | |
| ••• | 2.860" | 24.0" | 2843 fps | ••• | |
| ••• | 2.860" | 24.0" | 2883 fps | ••• | |
| ••• | 2.860" | 24.0" | 2571 fps | ••• | |
| ••• | 2.860" | 24.0" | 2621 fps | ••• | |
| ••• | 2.860" | 24.0" | 2678 fps | ••• | |
| ••• | 2.860" | 24.0" | 2729 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.