The .400 Corbon is an automatic pistol cartridge developed by Cor-Bon in 1997. It was created to mimic the ballistics of the powerful 10 mm Auto cartridge by means of a .45 ACP case, necked down to .40 caliber with a 25 degree shoulder.
Read more about .400 Corbon: History and Design, Performance, Ammunition and Handloading, Handguns and Conversions