Ruger No.1 single-shot varmint rifle chambered in .204 Ruger, a cartridge co-developed by Ruger and Hornady. Combines the No.1's accuracy potential with the flat-shooting .204 cartridge. Type: Rifle Action: Single-Shot Caliber: .204 Ruger Capacity: 1 Year introduced: 2004, USA Weight: 50 oz Overall length: 42" Status: Active Intended use: Varmint Hunting, Range