Load data for .300 Rem. Ultra Mag. + 200gr Sierra GameKing
327 suitable loads across 51 powder(s) for cartridge .300 Rem. Ultra Mag. with 200gr Sierra GameKing bullet.
The most recommended powders for this combination are Vihtavuori N570, Hodgdon Retumbo and ReloadSwiss RS 76.
Based on C.I.P., the max. allowed case length is 2.850 in / 72.39 mm, the max. cartridge length is 3.600 in / 91.44 mm, and the max. allowed pressure is 64,977 PSI / 4,480 bar.

Based on C.I.P., the max. allowed case length is 2.850 in / 72.39 mm, the max. cartridge length is 3.600 in / 91.44 mm, and the max. allowed pressure is 64,977 PSI / 4,480 bar.

Load Specifications
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Community Loads for .300 Rem. Ultra 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) |
|---|---|---|---|---|---|
| 79.9 gr | 3.598" | 24.0" | 2699 fps | ••• | |
| 81.8 gr | 3.598" | 24.0" | 2752 fps | ••• | |
| 80.9 gr | 3.598" | 24.0" | 2646 fps | ••• | |
| ••• | 3.598" | 24.0" | 2688 fps | ••• | |
| ••• | 3.598" | 24.0" | 2732 fps | ••• | |
| ••• | 3.598" | 24.0" | 2777 fps | ••• | |
| ••• | 3.598" | 24.0" | 2823 fps | ••• | |
| ••• | 3.598" | 24.0" | 2874 fps | ••• | |
| ••• | 3.598" | 24.0" | 2571 fps | ••• | |
| ••• | 3.598" | 24.0" | 2623 fps | ••• | |
| ••• | 3.598" | 24.0" | 2673 fps | ••• | |
| ••• | 3.598" | 24.0" | 2723 fps | ••• | |
| ••• | 3.598" | 24.0" | 2774 fps | ••• | |
| ••• | 3.598" | 24.0" | 2824 fps | ••• | |
| ••• | 3.598" | 24.0" | 2734 fps | ••• | |
| ••• | 3.598" | 24.0" | 2800 fps | ••• | |
| ••• | 3.598" | 24.0" | 2857 fps | ••• | |
| ••• | 3.598" | 24.0" | 2900 fps | ••• | |
| ••• | 3.598" | 24.0" | 2624 fps | ••• | |
| ••• | 3.598" | 24.0" | 2673 fps | ••• | |
| ••• | 3.598" | 24.0" | 2724 fps | ••• | |
| ••• | 3.598" | 24.0" | 2777 fps | ••• | |
| ••• | 3.598" | 24.0" | 2833 fps | ••• | |
| ••• | 3.598" | 24.0" | 2612 fps | ••• | |
| ••• | 3.598" | 24.0" | 2652 fps | ••• | |
| ••• | 3.598" | 24.0" | 2693 fps | ••• | |
| ••• | 3.598" | 24.0" | 2739 fps | ••• | |
| ••• | 3.598" | 24.0" | 2785 fps | ••• | |
| ••• | 3.598" | 24.0" | 2638 fps | ••• | |
| ••• | 3.598" | 24.0" | 2691 fps | ••• | |
| ••• | 3.598" | 24.0" | 2742 fps | ••• | |
| ••• | 3.598" | 24.0" | 2788 fps | ••• | |
| ••• | 3.598" | 24.0" | 2831 fps | ••• | |
| ••• | 3.598" | 24.0" | 2876 fps | ••• | |
| ••• | 3.598" | 24.0" | 2567 fps | ••• | |
| ••• | 3.598" | 24.0" | 2614 fps | ••• | |
| ••• | 3.598" | 24.0" | 2660 fps | ••• | |
| ••• | 3.598" | 24.0" | 2704 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.