Load data for .30-378 Weath. Mag. + 175gr Sierra MatchKing

317 suitable loads across 54 powder(s) for cartridge .30-378 Weath. Mag. with 175gr Sierra MatchKing bullet.

The most recommended powders for this combination are Hodgdon Retumbo, ADI AR 2218 and Vihtavuori N570.

Based on C.I.P., the max. allowed case length is 2.913 in / 73.99 mm, the max. cartridge length is 3.750 in / 95.25 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Based on C.I.P., the max. allowed case length is 2.913 in / 73.99 mm, the max. cartridge length is 3.750 in / 95.25 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Load Specifications

ImperialMetric

Bullet:.308 | 175gr | MatchKing

Cartridge:.30-378 Weath. Mag. load data

Case Length (L3):2.913" | 74.0 mm

Cartridge Length (COL/L6):•••

Seated Depth:0.553" | 14.0 mm

Case Capacity:133 gow | 8.62 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:1:13.5

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Community Loads for .30-378 Weath. Mag. + 175gr Sierra MatchKing

Real loads for this combination shared by our community. Charge weights are only fully visible with an active Pro licence.

Charge (gr)	C.O.L.	Barrel Length	Velocity (fps)	Pressure (psi)

109.4 gr	3.655"	26.0"	2994 fps	•••
112.2 gr	3.655"	26.0"	3077 fps	•••
115.0 gr	3.655"	26.0"	3159 fps	•••

Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.