Load data for .338-378 Weath. Mag. + 225gr Barnes TTSX BT

425 suitable loads across 75 powder(s) for cartridge .338-378 Weath. Mag. with 225gr Barnes TTSX BT bullet.

The most recommended powders for this combination are Hodgdon Retumbo, ReloadSwiss RS 76 and Accurate MAGPRO.

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 | TTSX BT

Cartridge:.338-378 Weath. Mag. load data

Case Length (L3):2.910" | 73.9 mm

Cartridge Length (COL/L6):•••

Seated Depth:0.717" | 18.2 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:1:12.5

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Community Loads for .338-378 Weath. Mag. + 225gr Barnes TTSX BT

Real loads for this combination shared by our community. Charge weights are only fully visible with an active Pro licence.

Charge (gr)	C.O.L.	Barrel Length	Velocity (fps)	Pressure (psi)

102.5 gr	3.740"	25.0"	2967 fps	•••

101.0 gr	3.740"	25.0"	2839 fps	•••
108.5 gr	3.740"	25.0"	3025 fps	•••

•••	3.740"	25.0"	2683 fps	•••
•••	3.740"	25.0"	2906 fps	•••

Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.