The Lyman Great Plains Rifle is a quality percussion muzzleloader in .54 caliber with a 32-inch barrel, built to traditional plains rifle specifications. Lyman Products of Middlefield, Connecticut is known primarily for reloading tools and bullet moulds; the Great Plains Rifle is their flagship complete firearm. Features a Hawken-style full-curl percussion lock. Type: Rifle Action: Single-Shot Caliber: .54 Cal Capacity: 1 Year introduced: 1980, USA Weight: 11.6 oz Overall length: 50" Intended use: muzzleloading hunting, historical collecting, competition