The Ruger No. 1 is a falling-block single-shot rifle built on a modified Farquharson action with a quarter-cock safety and tang-mounted lever. Introduced in 1966, it chambers virtually any cartridge that fits the action regardless of case length. The Light Sporter is the standard field variant with a medium-weight barrel and classic American walnut stock. Type: Rifle Action: Single-Shot Caliber: .243 Win Capacity: 1 Year introduced: 1966, USA Weight: 43 oz Overall length: 39.5" Status: Active Intended use: Hunting, Big Game, Collector