How Does a Bullet Work?
What is a bullet? A bullet is the projectile shot by a firearm. Typically these are made of iron or lead, but some non-lethal varieties are made from plastic or rubber. Bullets are commonly designated by two different types of measurements, calibre (referring to the width of the gun´s bore) or a millimeter measurement (refering to the width of the base of the bullet), and are sometimes used interchangeably. For example, the rifle bullets in .223 and .308 calibre are the same bullets as the 5.56mm and 7.62mm. Cartridges In modern firearms, all bullets come as part of a cartridge. Sometimes also called a “round,” the cartridge is the combination of the bullet, the propellant, the propellant casing and the firing cap. The bullet itself is placed atop a brass casing that houses the propellant powder, and at the base of the cartridge is the firing cap. How a Bullet is Fired There is a wide variety of loading mechanisms in modern firearms, but all but the most experimental bullets are fired
