A shotgun shell is a type of ammunition designed for use in a shotgun. It typically consists of a cylindrical plastic or paper casing filled with gunpowder, shot pellets, and a primer. When fired, the primer ignites the gunpowder, creating gas that propels the shot out of the barrel. Shotgun shells come in various sizes and types, including birdshot, buckshot, and slugs, each suited for different shooting purposes. Shotgun shells are commonly used in hunting, sport shooting, and self-defense. The design allows for a spread of shot, making it easier to hit moving targets like birds or small game. The versatility of shotgun shells makes them popular among hunters and recreational shooters alike.