Load data for .50 BMG + 870gr Peregrine Glider GRM

143 suitable loads across 26 powder(s) for cartridge .50 BMG with 870gr Peregrine Glider GRM bullet.

The most recommended powders for this combination are ADI AR 2218, Alliant Reloder-50 and Alliant Reloder-33.

.50 BMG cartridge with combo bulletSeated DepthL3 = 3.900 in / 99.06 mmL6 = 5.450 in / 138.43 mmSeated Depth = 1.269 in / 32.23 mm

Based on C.I.P., the max. allowed case length is 3.910 in / 99.31 mm, the max. cartridge length is 5.450 in / 138.43 mm, and the max. allowed pressure is 53,664 PSI / 3,700 bar.

Load Specifications

ImperialMetric
Case Length (L3):3.900" | 99.1 mm
Cartridge Length (COL/L6):•••
Seated Depth:1.351" | 34.3 mm
Case Capacity:300 gow | 19.44 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):53,664 psi | 3,700 bar
Barrel Length:29.0" | 737 mm
Min. Twist Rate:1:14.5

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