The EGW .45 ACP 7-Hole Cartridge Checker is a precision reloading tool designed to verify proper cartridge dimensions and ensure safe reliable ammunition for .45 ACP caliber firearms.EGW Model 70140 Cartridge Chamber Checker7-hole design for efficient cartridge verification.45 ACP caliber specificPrecision machined for accurate dimension checkingEssential tool for handloaders and reloadersThis chamber checker helps reloaders verify that their handloaded cartridges will properly chamber and extract ensuring safe and reliable performance in .45 ACP firearms.