Load data for .257 Weath. Mag. + 135gr Sierra Tipped MatchKing
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Load Specifications
ImperialMetric
Cartridge:.257 Weath. Mag. load data
Case Length (l3):2.549" | 64.7 mm
Cartridge Length (C.O.L.):•••
Seated Depth:0.784" | 19.9 mm
Case Capacity:84 gow | 5.44 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.)::63,817 psi | 4,400 bar
Barrel Length:26.0" | 660 mm
Min. Twist Rate:1:8.0
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