Cooper Arms Model 21 Western Classic in 308 Winchester. The Western Classic in 308 Win is Cooper's most versatile elegant hunting rifle — case-color receiver, AAA Claro walnut, and the most capable short-action cartridge available. From precision targets to elk camp, the 308 Win Western Classic Model 21 performs at every task with the added distinction of Cooper's finest production finish. Type: Rifle Action: Bolt-Action Caliber: 308 Winchester Capacity: 1 Year introduced: 1993, USA Weight: 62 oz Overall length: 43.5" Status: Active Intended use: hunting, target shooting, precision rifle