Definition
A shotgun is a firearm typically designed to be fired from the shoulder, using the energy of a fixed shell to fire a number of small pellets called shot, or a single projectile called a slug. They are commonly used for hunting, sport shooting, and in some cases, self-defense. Unlike rifles, shotguns aren't always rifled, which makes them more suitable for close-range targets. Think of it as a wide-spread net for catching birds, but with more kick. A shotgun's versatility comes from its varied ammunition, from birdshot to buckshot.