Load data for .338 Win Mag. + 300gr Sierra HPBT LR MatchKing
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
ImperialMetric
Cartridge:.338 Win Mag. load data
Case Length (L3):2.500" | 63.5 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.878" | 22.3 mm
Case Capacity:86 gow | 5.57 cm³
Primer Size:Large Rifle (LR)
Max. Pressure (C.I.P.):62,366 psi | 4,300 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:12.0
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Community Loads for .338 Win Mag. + 300gr Sierra HPBT LR 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) |
|---|---|---|---|---|---|
| 59.2 gr | 3.340" | 24.0" | 2206 fps | ••• | |
| 60.9 gr | 3.340" | 24.0" | 2262 fps | ••• | |
| 62.6 gr | 3.340" | 24.0" | 2315 fps | ••• | |
| ••• | 3.340" | 24.0" | 2369 fps | ••• | |
| ••• | 3.340" | 24.0" | 2416 fps | ••• | |
| ••• | 3.340" | 24.0" | 2428 fps | ••• | |
| ••• | 3.340" | 24.0" | 2293 fps | ••• | |
| ••• | 3.340" | 24.0" | 2332 fps | ••• | |
| ••• | 3.340" | 24.0" | 2377 fps | ••• | |
| ••• | 3.340" | 24.0" | 2426 fps | ••• | |
| ••• | 3.340" | 24.0" | 2481 fps | ••• | |
| ••• | 3.340" | 24.0" | 2509 fps | ••• | |
| ••• | 3.340" | 24.0" | 2246 fps | ••• | |
| ••• | 3.340" | 24.0" | 2307 fps | ••• | |
| ••• | 3.340" | 24.0" | 2364 fps | ••• | |
| ••• | 3.340" | 24.0" | 2264 fps | ••• | |
| ••• | 3.340" | 24.0" | 2346 fps | ••• | |
| ••• | 3.340" | 24.0" | 2414 fps | ••• | |
| ••• | 3.340" | 24.0" | 2442 fps | ••• | |
| ••• | 3.340" | 24.0" | 2307 fps | ••• | |
| ••• | 3.340" | 24.0" | 2442 fps | ••• | |
| ••• | 3.340" | 24.0" | 2279 fps | ••• | |
| ••• | 3.340" | 24.0" | 2334 fps | ••• | |
| ••• | 3.339" | 24.5" | 2375 fps | ••• | |
| ••• | 3.340" | 24.0" | 2389 fps | ••• | |
| ••• | 3.340" | 24.0" | 2439 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.