.223 WSSM | ||||||||||||||||
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Type | Rifle | |||||||||||||||
Place of origin | United States | |||||||||||||||
Production history | ||||||||||||||||
Designer | Browning & Winchester | |||||||||||||||
Designed | 2002 | |||||||||||||||
Manufacturer | Winchester | |||||||||||||||
Produced | 2003–present | |||||||||||||||
Specifications | ||||||||||||||||
Parent case | .300 WSM | |||||||||||||||
Case type | Rimless, bottleneck | |||||||||||||||
Bullet diameter | .224 in (5.7 mm) | |||||||||||||||
Neck diameter | .272 in (6.9 mm) | |||||||||||||||
Shoulder diameter | .544 in (13.8 mm) | |||||||||||||||
Base diameter | .555 in (14.1 mm) | |||||||||||||||
Rim diameter | .535 in (13.6 mm) | |||||||||||||||
Rim thickness | .054 in (1.4 mm) | |||||||||||||||
Case length | 1.670 in (42.4 mm) | |||||||||||||||
Overall length | 2.362 in (60.0 mm) | |||||||||||||||
Rifling twist | 1-7 in (180 mm) to 1-9 in (230 mm) | |||||||||||||||
Primer type | Large rifle | |||||||||||||||
Ballistic performance | ||||||||||||||||
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Test barrel length: 24 in (610 mm) Source(s): Hodgdon [1] |
The .223 WSSM (Winchester Super Short Magnum, 5.56×42mm) is a .224 caliber rifle cartridge created by Winchester and Browning based on a shortened version of the Winchester Short Magnum case.