Load data for .338 Norma Mag. + 250gr Sierra MatchKing
481 suitable loads across 75 powder(s) for cartridge .338 Norma Mag. with 250gr Sierra MatchKing bullet.
The most recommended powders for this combination are Vihtavuori N560, Norma MRP and Accurate MAGPRO.
Based on C.I.P., the max. allowed case length is 2.492 in / 63.30 mm, the max. cartridge length is 3.681 in / 93.50 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.
Based on C.I.P., the max. allowed case length is 2.492 in / 63.30 mm, the max. cartridge length is 3.681 in / 93.50 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.
Load Specifications
Get PRO license to unlock all data and calculators
Community Loads for .338 Norma 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) |
|---|---|---|---|---|---|
| 77.2 gr | 3.681" | 24.0" | 2380 fps | ••• | |
| 79.0 gr | 3.681" | 24.0" | 2435 fps | ••• | |
| 80.8 gr | 3.681" | 24.0" | 2487 fps | ••• | |
| ••• | 3.681" | 24.0" | 2540 fps | ••• | |
| ••• | 3.681" | 24.0" | 2588 fps | ••• | |
| ••• | 3.681" | 24.0" | 2639 fps | ••• | |
| ••• | 3.681" | 24.0" | 2479 fps | ••• | |
| ••• | 3.681" | 24.0" | 2529 fps | ••• | |
| ••• | 3.681" | 24.0" | 2583 fps | ••• | |
| ••• | 3.681" | 24.0" | 2519 fps | ••• | |
| ••• | 3.681" | 24.0" | 2381 fps | ••• | |
| ••• | 3.681" | 24.0" | 2440 fps | ••• | |
| ••• | 3.681" | 24.0" | 2505 fps | ••• | |
| ••• | 3.681" | 24.0" | 2575 fps | ••• | |
| ••• | 3.681" | 24.0" | 2649 fps | ••• | |
| ••• | 3.681" | 24.0" | 2369 fps | ••• | |
| ••• | 3.681" | 24.0" | 2419 fps | ••• | |
| ••• | 3.681" | 24.0" | 2468 fps | ••• | |
| ••• | 3.681" | 24.0" | 2518 fps | ••• | |
| ••• | 3.681" | 24.0" | 2362 fps | ••• | |
| ••• | 3.681" | 24.0" | 2416 fps | ••• | |
| ••• | 3.681" | 24.0" | 2465 fps | ••• | |
| ••• | 3.681" | 24.0" | 2518 fps | ••• | |
| ••• | 3.681" | 24.0" | 2568 fps | ••• | |
| ••• | 3.681" | 24.0" | 2386 fps | ••• | |
| ••• | 3.681" | 24.0" | 2452 fps | ••• | |
| ••• | 3.681" | 24.0" | 2511 fps | ••• | |
| ••• | 3.681" | 24.0" | 2566 fps | ••• | |
| ••• | 3.681" | 24.0" | 2514 fps | ••• | |
| ••• | 3.681" | 24.0" | 2574 fps | ••• | |
| ••• | 3.543" | 23.6" | 2299 fps | ••• | |
| ••• | 3.543" | 23.6" | 2752 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.