Load data for .338 Win Mag. + 250gr Sierra MatchKing
581 suitable loads across 103 powder(s) for cartridge .338 Win Mag. with 250gr Sierra MatchKing bullet.
The most recommended powders for this combination are Alliant Reloder-17, ReloadSwiss RS 60 and Winchester 760.
Based on C.I.P., the max. allowed case length is 2.500 in / 63.50 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 2.500 in / 63.50 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
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Community Loads for .338 Win 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) |
|---|---|---|---|---|---|
| 60.2 gr | 3.340" | 24.0" | 2446 fps | ••• | |
| 61.7 gr | 3.340" | 24.0" | 2501 fps | ••• | |
| 63.1 gr | 3.340" | 24.0" | 2552 fps | ••• | |
| ••• | 3.340" | 24.0" | 2602 fps | ••• | |
| ••• | 3.340" | 24.0" | 2487 fps | ••• | |
| ••• | 3.340" | 24.0" | 2538 fps | ••• | |
| ••• | 3.340" | 24.0" | 2591 fps | ••• | |
| ••• | 3.340" | 24.0" | 2645 fps | ••• | |
| ••• | 3.340" | 24.0" | 2427 fps | ••• | |
| ••• | 3.340" | 24.0" | 2487 fps | ••• | |
| ••• | 3.340" | 24.0" | 2543 fps | ••• | |
| ••• | 3.340" | 24.0" | 2598 fps | ••• | |
| ••• | 3.340" | 24.0" | 2565 fps | ••• | |
| ••• | 3.340" | 24.0" | 2402 fps | ••• | |
| ••• | 3.340" | 24.0" | 2451 fps | ••• | |
| ••• | 3.340" | 24.0" | 2501 fps | ••• | |
| ••• | 3.340" | 24.0" | 2548 fps | ••• | |
| ••• | 3.340" | 24.0" | 2598 fps | ••• | |
| ••• | 3.340" | 24.0" | 2653 fps | ••• | |
| ••• | 3.340" | 24.0" | 2497 fps | ••• | |
| ••• | 3.340" | 24.0" | 2500 fps | ••• | |
| ••• | 3.340" | 24.0" | 2557 fps | ••• | |
| ••• | 3.340" | 24.0" | 2618 fps | ••• | |
| ••• | 3.340" | 24.0" | 2488 fps | ••• | |
| ••• | 3.340" | 24.0" | 2535 fps | ••• | |
| ••• | 3.340" | 24.0" | 2585 fps | ••• | |
| ••• | 3.340" | 24.0" | 2359 fps | ••• | |
| ••• | 3.340" | 24.0" | 2410 fps | ••• | |
| ••• | 3.340" | 24.0" | 2456 fps | ••• | |
| ••• | 3.340" | 24.0" | 2500 fps | ••• | |
| ••• | 3.340" | 24.0" | 2442 fps | ••• | |
| ••• | 3.340" | 24.0" | 2491 fps | ••• | |
| ••• | 3.340" | 24.0" | 2527 fps | ••• | |
| ••• | 3.340" | 24.0" | 2575 fps | ••• | |
| ••• | 3.340" | 24.0" | 2372 fps | ••• | |
| ••• | 3.340" | 24.0" | 2421 fps | ••• | |
| ••• | 3.340" | 24.0" | 2473 fps | ••• | |
| ••• | 3.340" | 24.0" | 2522 fps | ••• | |
| ••• | 3.340" | 24.0" | 2579 fps | ••• | |
| ••• | 3.340" | 24.0" | 2637 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.