Cooper Firearms Model 22 in .204 Ruger with a 24-inch barrel. A precision varmint rifle on Cooper's rimfire-scale action, chambered in the high-velocity .204 Ruger cartridge. Type: Rifle Action: Bolt-Action Caliber: .204 Ruger Capacity: 5 Year introduced: 2004, USA Weight: 80 oz Overall length: 44.5" Status: Active Intended use: Varmint, Precision Shooting