HornadyA(R) Critical Defense Handgun Ammo. Hollow point bullets don't always work when compromised by an attacker's clothing, especially denim and leather. NOT with HornadyA(R) Critical Defense. Its patented polymer Flex TipA(R) design always delivers big, controlled expansion. An American classic is now reborn featuring 21st Century ballistic technology and the Hornady exclusive advantage provided by the patented Flex Tip design of the 30 caliber 110 grain FTXA(R) bullet. This design routinely delivers 15" of penetration in ballistic gelatin tests. At 2000 fps, this Critical Defense offering redefines the performance of the storied M1 Carbine DRAMATICALLY. PLEASE NOTE: Hornady has temporarily suspended nickel plating due to supply shortages. These rounds will feature a traditional brass case instead. Order today!