Hornady NTX bullets provide peerless performance with a nontraditional core material that combines accuracy, reliability and Hornady quality for use in areas with restrictions on the use of traditional bullets. Hornady has made lead core bullets since 1949. Lead is, and always will be an excellent core material that provides density and hardhitting energy to a vast array of bullets. However, there are regulations in some areas that restrict the use of lead in bullets. The nonlead core of the NTX, which is crafted from a frangible copper alloy, features a small space between it and the shaft of the hard polymer tip, just like the VMAX. This specially designed cavity allows the coppercolored tip and shaft to build up increased energy upon impact with the target before driving into the bullet's core with increased force, initiating nearinstant expansion and explosive fragmentation.