Load data for 5.56 x 45 NATO + 77gr Sierra Tipped MatchKing
467 suitable loads across 81 powder(s) for cartridge 5.56 x 45 NATO with 77gr Sierra Tipped MatchKing bullet.
The most recommended powders for this combination are Hodgdon H335, Hodgdon CFE223 and Somchem S321.
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Load Specifications
ImperialMetric
Cartridge:5.56 x 45 NATO load data
Case Length (l3):1.759" | 44.7 mm
Cartridge Length (C.O.L.):•••
Seated Depth:0.597" | 15.2 mm
Case Capacity:30 gow | 1.94 cm³
Primer Size:Small Rifle (SR)
Max. Pressure (C.I.P.)::62,366 psi | 4,300 bar
Barrel Length:20.0" | 508 mm
Min. Twist Rate:1:8.5
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