Load data for .300 Rem. Ultra Mag. + 175gr Sierra MatchKing

366 suitable loads across 66 powder(s) for cartridge .300 Rem. Ultra Mag. with 175gr Sierra MatchKing bullet.

The most recommended powders for this combination are Hodgdon Retumbo, ReloadSwiss RS 76 and Vihtavuori N560.

Based on C.I.P., the max. allowed case length is 2.850 in / 72.39 mm, the max. cartridge length is 3.600 in / 91.44 mm, and the max. allowed pressure is 64,977 PSI / 4,480 bar.

Based on C.I.P., the max. allowed case length is 2.850 in / 72.39 mm, the max. cartridge length is 3.600 in / 91.44 mm, and the max. allowed pressure is 64,977 PSI / 4,480 bar.

Load Specifications

ImperialMetric

Bullet:.308 | 175gr | MatchKing

Cartridge:.300 Rem. Ultra Mag. load data

Case Length (L3):2.850" | 72.4 mm

Cartridge Length (COL/L6):•••

Seated Depth:0.546" | 13.9 mm

Case Capacity:112.5 gow | 7.29 cm³

Primer Size:Large Rifle Magnum (LRM)

Max. Pressure (C.I.P.):64,977 psi | 4,480 bar

Barrel Length:24.0" | 610 mm

Min. Twist Rate:1:13.5

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Community Loads for .300 Rem. Ultra 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)

87.0 gr	3.598"	24.0"	2844 fps	•••
88.7 gr	3.598"	24.0"	2891 fps	•••
90.3 gr	3.598"	24.0"	2937 fps	•••
•••	3.598"	24.0"	2983 fps	•••

•••	3.598"	24.0"	2923 fps	•••

•••	3.598"	24.0"	2721 fps	•••
•••	3.598"	24.0"	2826 fps	•••
•••	3.598"	24.0"	2868 fps	•••
•••	3.598"	24.0"	2911 fps	•••

•••	3.598"	24.0"	2747 fps	•••
•••	3.598"	24.0"	2841 fps	•••
•••	3.598"	24.0"	2888 fps	•••
•••	3.598"	24.0"	2932 fps	•••

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