Load data for 5.56 x 45 NATO + 55gr Sierra Tipped VarmintKing
261 suitable loads across 44 powder(s) for cartridge 5.56 x 45 NATO with 55gr Sierra Tipped VarmintKing bullet.
The most recommended powders for this combination are ADI AR 2219, ADI AR 2207 and Norma 200.
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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:0.433" | 11.0 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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