Load data for .338-378 Weath. Mag. + 200gr NorthFork Bonded Core

418 suitable loads across 72 powder(s) for cartridge .338-378 Weath. Mag. with 200gr NorthFork Bonded Core bullet.

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

.338-378 Weath. Mag. cartridge with combo bulletSeated DepthL3 = 2.910 in / 73.91 mmL6 = 3.750 in / 95.25 mmSeated Depth = .332 in / 8.43 mm

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
Case Length (L3):2.910" | 73.9 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.388" | 9.9 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:1:17.0

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