A projectile for use in hunting is formed of a hard tapered first body, and second and third bodies disposed behind the first body. The three bodies are connected together by an axial stem extending rearwardly from the first body and a securing nut threaded onto its end to attach the bodies together. A chamber in the second body is closed by the first body. When the first body impacts a hard object, the chamber and air therein are pressurized to cause explosion of the second body to generate shrapnel. The outer surfaces of the second and third bodies have helical grooves for guidance and spinning of the projectile. At a rear end of the projectile, the outer surface is provided with an annular smooth area to fit complementarily with the smooth interior surface of the gun barrel, to prevent leakage of combustion gases.