Load data for .338-378 Weath. Mag. + 250gr Sierra MatchKing
338 suitable loads across 54 powder(s) for cartridge .338-378 Weath. Mag. with 250gr Sierra MatchKing 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 2.913 in / 73.99 mm, the max. cartridge length is 3.763 in / 95.58 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.
Based on C.I.P., the max. allowed case length is 2.913 in / 73.99 mm, the max. cartridge length is 3.763 in / 95.58 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.
Load Specifications
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Community Loads for .338-378 Weath. Mag. + 250gr 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) |
|---|---|---|---|---|---|
| 88.4 gr | 3.750" | 24.0" | 2548 fps | ••• | |
| 90.5 gr | 3.750" | 24.0" | 2595 fps | ••• | |
| 92.6 gr | 3.750" | 24.0" | 2642 fps | ••• | |
| ••• | 3.750" | 24.0" | 2541 fps | ••• | |
| ••• | 3.750" | 24.0" | 2609 fps | ••• | |
| ••• | 3.750" | 24.0" | 2613 fps | ••• | |
| ••• | 3.750" | 24.0" | 2664 fps | ••• | |
| ••• | 3.750" | 24.0" | 2721 fps | ••• | |
| ••• | 3.750" | 24.0" | 2777 fps | ••• | |
| ••• | 3.750" | 24.0" | 2604 fps | ••• | |
| ••• | 3.750" | 24.0" | 2654 fps | ••• | |
| ••• | 3.750" | 24.0" | 2746 fps | ••• | |
| ••• | 3.750" | 24.0" | 2419 fps | ••• | |
| ••• | 3.750" | 24.0" | 2483 fps | ••• | |
| ••• | 3.750" | 24.0" | 2518 fps | ••• | |
| ••• | 3.750" | 24.0" | 2532 fps | ••• | |
| ••• | 3.750" | 24.0" | 2557 fps | ••• | |
| ••• | 3.750" | 24.0" | 2566 fps | ••• | |
| ••• | 3.750" | 24.0" | 2577 fps | ••• | |
| ••• | 3.750" | 24.0" | 2615 fps | ••• | |
| ••• | 3.750" | 24.0" | 2662 fps | ••• | |
| ••• | 3.750" | 24.0" | 2606 fps | ••• | |
| ••• | 3.750" | 24.0" | 2658 fps | ••• | |
| ••• | 3.750" | 24.0" | 2701 fps | ••• | |
| ••• | 3.750" | 24.0" | 2743 fps | ••• | |
| ••• | 3.750" | 24.0" | 2530 fps | ••• | |
| ••• | 3.750" | 24.0" | 2573 fps | ••• | |
| ••• | 3.750" | 24.0" | 2614 fps | ••• | |
| ••• | 3.750" | 24.0" | 2659 fps | ••• | |
| ••• | 3.750" | 24.0" | 2418 fps | ••• | |
| ••• | 3.750" | 24.0" | 2460 fps | ••• | |
| ••• | 3.750" | 24.0" | 2489 fps | ••• | |
| ••• | 3.750" | 24.0" | 2520 fps | ••• | |
| ••• | 3.750" | 24.0" | 2549 fps | ••• | |
| ••• | 3.750" | 24.0" | 2577 fps | ••• | |
| ••• | 3.750" | 24.0" | 2632 fps | ••• | |
| ••• | 3.750" | 24.0" | 2681 fps | ••• | |
| ••• | 3.750" | 24.0" | 2484 fps | ••• | |
| ••• | 3.750" | 24.0" | 2520 fps | ••• | |
| ••• | 3.750" | 24.0" | 2537 fps | ••• | |
| ••• | 3.750" | 24.0" | 2561 fps | ••• | |
| ••• | 3.750" | 24.0" | 2668 fps | ••• | |
| ••• | 3.750" | 24.0" | 2721 fps | ••• | |
| ••• | 3.750" | 24.0" | 2491 fps | ••• | |
| ••• | 3.750" | 24.0" | 2543 fps | ••• | |
| ••• | 3.750" | 24.0" | 2556 fps | ••• | |
| ••• | 3.750" | 24.0" | 2600 fps | ••• | |
| ••• | 3.750" | 24.0" | 2603 fps | ••• | |
| ••• | 3.750" | 24.0" | 2654 fps | ••• | |
| ••• | 3.750" | 24.0" | 2700 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.