Load data for .300 Weath. Mag. + 200gr Sierra MatchKing

473 suitable loads across 73 powder(s) for cartridge .300 Weath. Mag. with 200gr Sierra MatchKing bullet.

The most recommended powders for this combination are Winchester StaBALL HD, Vihtavuori N560 and Norma MRP.

.300 Weath. Mag. cartridge with combo bulletSeated DepthL3 = 2.824 in / 71.73 mmL6 = 3.560 in / 90.42 mmSeated Depth = .655 in / 16.64 mm

Based on C.I.P., the max. allowed case length is 2.825 in / 71.75 mm, the max. cartridge length is 3.560 in / 90.42 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

200gr Sierra MatchKing bullet image

Load Specifications

ImperialMetric
Case Length (L3):2.824" | 71.7 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.708" | 18.0 mm
Case Capacity:98.9 gow | 6.41 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.):63,817 psi | 4,400 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:12.0

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