Load data for .338 Norma Mag. + 300gr MAKER Expanding Subsonic

425 suitable loads across 73 powder(s) for cartridge .338 Norma Mag. with 300gr MAKER Expanding Subsonic bullet.

The most recommended powders for this combination are Hodgdon Retumbo, ReloadSwiss RS 76 and Winchester StaBALL HD.

.338 Norma Mag. cartridge with combo bulletSeated DepthL3 = 2.490 in / 63.25 mmL6 = 3.681 in / 93.50 mmSeated Depth = .559 in / 14.20 mm

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

ImperialMetric
Case Length (L3):2.490" | 63.2 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.614" | 15.6 mm
Case Capacity:105.4 gow | 6.83 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):63,817 psi | 4,400 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:11.5

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