. . "A muzzle-loading rifle is a muzzle-loaded small arm or artillery piece that has a rifled barrel rather than a smoothbore. The term \"rifled muzzle loader\" typically is used to describe a type of artillery piece, although it is technically accurate for small arms as well. A shoulder arm is typically just called a \"rifle\", as almost all small arms were rifled by the time breechloading became prevalent."@en .