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.

What type of gun is a muzzleloader?

Muzzleloaders are most commonly rifles. However, there are also smooth-bored muzzleloaders—shotguns. Shotgun muzzleloaders can have either a single barrel or double barrels joined side-by-side. When loading the double-barreled muzzleloader, it's critical to avoid putting the two loads down the same barrel.

What is a muzzleloading shotgun?

A muzzleloader is any firearm into which the projectile is loaded from the muzzle of the gun (from the open end of the gun's barrel).