탄알

Also known as projectile

thumb|7.5×55mm Swiss full metal jacket, armor piercing, tracer, and spitzer projectiles. The three bullets on the right show [[cannelure evolution.]] thumb|Schlieren imaging|Schlieren image sequence of a bullet traveling in free-flight, demonstrating the air pressure dynamics surrounding the bullet A bullet is a kinetic projectile, a component of firearm ammunition that is shot from a gun barrel. They are made of a variety of materials, such as copper, lead, steel, polymer, rubber and even wax; and are made in various shapes and constructions (depending on the intended applications), including