Load data for .223 WSSM + 77gr Sierra HPBT MatchKing

Based on C.I.P., the max. allowed case length is 1.670 in / 42.42 mm, the max. cartridge length is 2.360 in / 59.94 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Based on C.I.P., the max. allowed case length is 1.670 in / 42.42 mm, the max. cartridge length is 2.360 in / 59.94 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Load Specifications

ImperialMetric

Bullet:.224 | 77gr | HPBT MatchKing

Cartridge:.223 WSSM load data

Case Length (L3):1.663" | 42.2 mm

Cartridge Length (COL/L6):•••

Seated Depth:0.437" | 11.1 mm

Case Capacity:53.7 gow | 3.48 cm³

Primer Size:Large Rifle (LR)

Max. Pressure (C.I.P.):63,817 psi | 4,400 bar

Barrel Length:24.0" | 610 mm

Min. Twist Rate:1:9.0

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Community Loads for .223 WSSM + 77gr Sierra HPBT 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)

37.8 gr	2.230"	24.0"	2980 fps	•••
40.7 gr	2.230"	24.0"	3181 fps	•••

41.4 gr	2.230"	24.0"	2969 fps	•••
•••	2.230"	24.0"	3161 fps	•••

•••	2.230"	24.0"	3179 fps	•••

•••	2.230"	24.0"	3081 fps	•••

•••	2.230"	24.0"	3143 fps	•••

•••	2.230"	24.0"	3083 fps	•••

•••	2.230"	24.0"	3041 fps	•••

•••	2.230"	24.0"	3132 fps	•••
•••	2.230"	24.0"	3277 fps	•••

•••	2.230"	24.0"	3137 fps	•••
•••	2.230"	24.0"	3312 fps	•••

•••	2.230"	24.0"	3223 fps	•••

•••	2.230"	24.0"	3172 fps	•••
•••	2.230"	24.0"	3324 fps	•••

•••	2.230"	24.0"	3006 fps	•••
•••	2.230"	24.0"	3208 fps	•••

•••	2.230"	24.0"	3081 fps	•••

•••	2.230"	24.0"	2878 fps	•••
•••	2.230"	24.0"	3060 fps	•••

•••	2.230"	24.0"	3070 fps	•••
•••	2.230"	24.0"	3221 fps	•••
•••	2.230"	24.0"	3104 fps	•••
•••	2.230"	24.0"	3316 fps	•••

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