.400 Corbon
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The .400 Cor-Bon is an automatic pistol cartridge developed by Cor-Bon in 1997. It was created to match the ballistic performance of the 10mm Auto cartridge in a .45 ACP form factor. It is essentially a .45 ACP case, necked down to .40 caliber with a 25-degree shoulder.
Specifications
Parent case: .45 ACP Case type: Rimless, bottleneck Bullet diameter: .401 in (10.2 mm) Neck diameter: .423 in (10.7 mm) Shoulder diameter: .469 in (11.9 mm) Base diameter: .470 in (11.9 mm) Rim diameter: .471 in (12.0 mm) Rim thickness: .050 in (1.3 mm) Case length: .898 in (22.8 mm) Overall length: 1.20 in (30 mm) Rifling twist: 1:16 Primer type: small pistol/rifle
