Meeting the FBI protocol handgun ammunition terminal performance test requirements is no small task – especially with a bullet as large as .45 caliber – but Hornady engineers have succeeded! Featuring the 220 grain FlexLock® bullet, the Critical Duty 45 Auto+P delivers industry leading performance through all FBI established urban barriers. The FlexLock bullet features the Hornady exclusive Flex Tip technology that prevents bullet clogging while enhancing barrier penetration and terminal performance. A massive jacket-to-core InterLock band is used to lock the jacket and core together for high weight retention. Additionally, all Critical Duty loads feature low-flash propellants and nickel plated cartridge cases with sealed primers and case mouths.