A double-barrel shotgun is a type of firearm that features two parallel barrels, allowing the shooter to fire two shots in quick succession. These shotguns are commonly used for hunting and sport shooting, providing versatility in various shooting scenarios. The barrels can be arranged either side by side or one on top of the other, known as over-and-under configuration. Double-barrel shotguns can be loaded with different types of ammunition, such as shotgun shells for bird hunting or slugs for larger game. They are often favored for their reliability and simplicity, making them a popular choice among both novice and experienced shooters.