Load data for .357 Mag. + 123gr LOS HP

198 suitable loads across 37 powder(s) for cartridge .357 Mag. with 123gr LOS HP bullet.

The most recommended powders for this combination are ADI AP 100, SNPE Vectan BA7 1/2 and Alliant Herco.

.357 Mag. cartridge with combo bulletSeated DepthL3 = 1.290 in / 32.77 mmL6 = 1.590 in / 40.39 mmSeated Depth = .250 in / 6.35 mm

Based on C.I.P., the max. allowed case length is 1.290 in / 32.77 mm, the max. cartridge length is 1.590 in / 40.39 mm, and the max. allowed pressure is 43,511 PSI / 3,000 bar.

123gr LOS HP bullet image

Load Specifications

ImperialMetric
Case Length (L3):1.290" | 32.8 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.274" | 7.0 mm
Case Capacity:25.6 gow | 1.66 cm³
Primer Size:Small Pistol Magnum (SPM)
Max. Pressure (C.I.P.):43,511 psi | 3,000 bar
Barrel Length:6.0" | 152 mm
Min. Twist Rate:Stabilizes in any common twist

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