Load data for .300 Win. Mag. + 200gr Sierra 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 | 200gr | GameKing
Cartridge:.300 Win. Mag. load data
Case Length (L3):2.620" | 66.5 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.681" | 17.3 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:1:12.0
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Community Loads for .300 Win. Mag. + 200gr 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) |
|---|---|---|---|---|---|
| 59.1 gr | 3.340" | 24.0" | 2610 fps | ••• | |
| 62.1 gr | 3.340" | 24.0" | 2717 fps | ••• | |
| 64.9 gr | 3.340" | 24.0" | 2815 fps | ••• | |
| ••• | 3.340" | 24.0" | 2543 fps | ••• | |
| ••• | 3.340" | 24.0" | 2622 fps | ••• | |
| ••• | 3.340" | 24.0" | 2702 fps | ••• | |
| ••• | 3.340" | 24.0" | 2594 fps | ••• | |
| ••• | 3.340" | 24.0" | 2682 fps | ••• | |
| ••• | 3.340" | 24.0" | 2762 fps | ••• | |
| ••• | 3.340" | 24.0" | 2580 fps | ••• | |
| ••• | 3.340" | 24.0" | 2660 fps | ••• | |
| ••• | 3.340" | 24.0" | 2738 fps | ••• | |
| ••• | 3.340" | 24.0" | 2566 fps | ••• | |
| ••• | 3.340" | 24.0" | 2697 fps | ••• | |
| ••• | 3.340" | 24.0" | 2641 fps | ••• | |
| ••• | 3.340" | 24.0" | 2727 fps | ••• | |
| ••• | 3.340" | 24.0" | 2812 fps | ••• | |
| ••• | 3.340" | 24.0" | 2513 fps | ••• | |
| ••• | 3.340" | 24.0" | 2597 fps | ••• | |
| ••• | 3.340" | 24.0" | 2693 fps | ••• | |
| ••• | 3.340" | 24.0" | 2488 fps | ••• | |
| ••• | 3.340" | 24.0" | 2570 fps | ••• | |
| ••• | 3.340" | 24.0" | 2646 fps | ••• | |
| ••• | 3.340" | 24.0" | 2728 fps | ••• | |
| ••• | 3.340" | 24.0" | 2876 fps | ••• | |
| ••• | 3.340" | 24.0" | 2980 fps | ••• | |
| ••• | 3.340" | 24.0" | 2429 fps | ••• | |
| ••• | 3.340" | 24.0" | 2502 fps | ••• | |
| ••• | 3.340" | 24.0" | 2578 fps | ••• | |
| ••• | 3.340" | 24.0" | 2656 fps | ••• | |
| ••• | 3.340" | 24.0" | 2738 fps | ••• | |
| ••• | 3.340" | 24.0" | 2531 fps | ••• | |
| ••• | 3.340" | 24.0" | 2615 fps | ••• | |
| ••• | 3.340" | 24.0" | 2698 fps | ••• | |
| ••• | 3.340" | 24.0" | 2781 fps | ••• | |
| ••• | 3.340" | 24.0" | 2530 fps | ••• | |
| ••• | 3.340" | 24.0" | 2633 fps | ••• | |
| ••• | 3.340" | 24.0" | 2730 fps | ••• | |
| ••• | 3.340" | 24.0" | 2544 fps | ••• | |
| ••• | 3.340" | 24.0" | 2631 fps | ••• | |
| ••• | 3.340" | 24.0" | 2710 fps | ••• | |
| ••• | 3.340" | 24.0" | 2783 fps | ••• | |
| ••• | 3.340" | 24.0" | 2634 fps | ••• | |
| ••• | 3.340" | 24.0" | 2769 fps | ••• | |
| ••• | 3.339" | 25.6" | 2731 fps | ••• | |
| ••• | 3.339" | 25.6" | 2754 fps | ••• | |
| ••• | 3.340" | 24.0" | 2520 fps | ••• | |
| ••• | 3.340" | 24.0" | 2611 fps | ••• | |
| ••• | 3.340" | 24.0" | 2695 fps | ••• | |
| ••• | 3.340" | 24.0" | 2780 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.