Ruger No.1 International in .243 Winchester with 20-inch barrel and full-length Mannlicher-style stock. The most compact and classic-styled of the No.1 variants. Type: Rifle Action: Single-Shot Caliber: .243 Win Capacity: 1 Year introduced: 1966, USA Weight: 37 oz Overall length: 36.5" Status: Discontinued Intended use: Big Game, Safari