Aguila Minishell shotshells are only 1 3/4" long and greatly increase the capacity of pump action shotguns. They work great in Winchester 1300 shotguns, though other pump guns may not cycle reliably without modification. Perfect for use as low recoil ammunition for single shot or double guns as well. Ideal for recoil sensitive shooters. Designed specifically for smooth bore barrels but can also be used in rifled choke tube barrels or fully rifled barrels.