a frangible bullet for use in training ranges as an alternative to live ammunition , which disintegrates upon impact with a target . the frangible bullet includes an elongated frangible core member fabricated from a thermoplastic polymer and at least one metal , the core member having a back end , an opposite tip end and a central portion therebetween , and having a core length between the back end and the tip end . the core member is jacketed in an outer jacket having a closed first end and an opposite opened second end , having a jacket length between the first end and second end , and defining a jacket chamber for complementarily receiving the core member therein . the core member fits inside the outer jacket such that the tip end of the frangible core member is exposed and impacts the target first , resulting in fragmentation of the core member and the outer jacket .