Larger-bore Great Plains Rifle for hunters who want maximum energy on big game. Same double-set triggers and 1:60 twist as the .50 cal, ideal for patched round balls. Type: Rifle Action: Single-Shot Caliber: .54 cal Capacity: 1 Year introduced: 1982, USA Weight: 130 oz Overall length: 50.5" Status: Active Intended use: Hunting, Target Shooting, Collecting