54 caliber percussion version of the Lyman Great Plains Rifle. The larger bore is preferred by hunters targeting elk and bear. Double-set triggers, 32-inch octagonal barrel, and select walnut stock. Available as a finished rifle or kit. Type: Rifle Action: Single-Shot Caliber: 54 Cal Capacity: 1 Year introduced: 1979, USA Weight: 128 oz Overall length: 50" Status: Active Intended use: traditional, hunting, historical