Load data for .375 Rem. Ultra Mag. + 250gr Sierra GameKing
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 63,817 PSI / 4,400 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 63,817 PSI / 4,400 bar.
Load Specifications
ImperialMetric
Bullet:.375 | 250gr | GameKing
Cartridge:.375 Rem. Ultra Mag. load data
Case Length (L3):2.850" | 72.4 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.515" | 13.1 mm
Case Capacity:117 gow | 7.58 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:1:6.0
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Community Loads for .375 Rem. Ultra Mag. + 250gr 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) |
|---|---|---|---|---|---|
| 87.2 gr | 3.600" | 24.0" | 2739 fps | ••• | |
| 88.1 gr | 3.600" | 24.0" | 2762 fps | ••• | |
| 89.3 gr | 3.600" | 24.0" | 2795 fps | ••• | |
| ••• | 3.600" | 24.0" | 2837 fps | ••• | |
| ••• | 3.600" | 24.0" | 2883 fps | ••• | |
| ••• | 3.600" | 24.0" | 2940 fps | ••• | |
| ••• | 3.600" | 24.0" | 2686 fps | ••• | |
| ••• | 3.600" | 24.0" | 2725 fps | ••• | |
| ••• | 3.600" | 24.0" | 2762 fps | ••• | |
| ••• | 3.600" | 24.0" | 2800 fps | ••• | |
| ••• | 3.600" | 24.0" | 2840 fps | ••• | |
| ••• | 3.600" | 24.0" | 2699 fps | ••• | |
| ••• | 3.600" | 24.0" | 2741 fps | ••• | |
| ••• | 3.600" | 24.0" | 2778 fps | ••• | |
| ••• | 3.600" | 24.0" | 2817 fps | ••• | |
| ••• | 3.600" | 24.0" | 2857 fps | ••• | |
| ••• | 3.600" | 24.0" | 2897 fps | ••• | |
| ••• | 3.600" | 24.0" | 2646 fps | ••• | |
| ••• | 3.600" | 24.0" | 2673 fps | ••• | |
| ••• | 3.600" | 24.0" | 2711 fps | ••• | |
| ••• | 3.600" | 24.0" | 2753 fps | ••• | |
| ••• | 3.600" | 24.0" | 2806 fps | ••• | |
| ••• | 3.600" | 24.0" | 2869 fps | ••• | |
| ••• | 3.600" | 24.0" | 2734 fps | ••• | |
| ••• | 3.600" | 24.0" | 2772 fps | ••• | |
| ••• | 3.600" | 24.0" | 2814 fps | ••• | |
| ••• | 3.600" | 24.0" | 2854 fps | ••• | |
| ••• | 3.600" | 24.0" | 2678 fps | ••• | |
| ••• | 3.600" | 24.0" | 2723 fps | ••• | |
| ••• | 3.600" | 24.0" | 2763 fps | ••• | |
| ••• | 3.600" | 24.0" | 2805 fps | ••• | |
| ••• | 3.600" | 24.0" | 2848 fps | ••• | |
| ••• | 3.600" | 24.0" | 2890 fps | ••• | |
| ••• | 3.600" | 24.0" | 2934 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.