Hornady Critical Defense, 30 Carbine, 110 Grain, Flex Tip, 25 Round Box 81030 An American classic is reborn - featuring 21st-century ballistic technology and the patented Hornady exclusive advantage provided by the patented Flex Tip(R) design of the 30 Cal. 110 gr FTX(R) bullet. This design routinely delivers 15" of penetration in ballistic gelatin tests. At 2000 fps, this Critical Defense offering dramatically redefines the performance of the storied M1 Carbine.