Load data for .338-378 Weath. Mag. + 225gr Barnes TSX FB
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
ImperialMetric
Bullet:.338 | 225gr | TSX FB
Cartridge:.338-378 Weath. Mag. load data
Case Length (L3):2.910" | 73.9 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.608" | 15.4 mm
Case Capacity:137 gow | 8.88 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):63,817 psi | 4,400 bar
Barrel Length:26.0" | 660 mm
Min. Twist Rate:1:13.5
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Community Loads for .338-378 Weath. Mag. + 225gr Barnes TSX FB
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) |
|---|---|---|---|---|---|
| 101.0 gr | 3.720" | 25.0" | 2807 fps | ••• | |
| 108.5 gr | 3.720" | 25.0" | 2994 fps | ••• | |
| 107.0 gr | 3.720" | 25.0" | 2870 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.