Load data for .300 H&H Mag. + 155.5gr Warner Tool Co. Flat Line

594 suitable loads across 100 powder(s) for cartridge .300 H&H Mag. with 155.5gr Warner Tool Co. Flat Line bullet.

The most recommended powders for this combination are ReloadSwiss RS 60, Alliant Reloder-17 and ReloadSwiss RS 70.

.300 H&H Mag. cartridge with combo bulletSeated DepthL3 = 2.850 in / 72.39 mmL6 = 3.600 in / 91.44 mmSeated Depth = .690 in / 17.53 mm

Based on C.I.P., the max. allowed case length is 2.850 in / 72.39 mm, the max. cartridge length is 3.600 in / 91.44 mm, and the max. allowed pressure is 62,366 PSI / 4,300 bar.

Load Specifications

ImperialMetric
Case Length (L3):2.850" | 72.4 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.744" | 18.9 mm
Case Capacity:85.9 gow | 5.57 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):62,366 psi | 4,300 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:10.0

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