Winchester's semi-automatic .22 LR using a detachable box magazine rather than a tube, unusual for semi-auto .22 rimfires of the era. The box magazine simplified reloading and allowed the rifle to sit flat on a rest. Type: Rifle Action: Semi-Automatic Caliber: .22 LR Capacity: 8 Year introduced: 1955, USA Weight: 5.5 oz Overall length: 40.5" Status: Discontinued Intended use: Plinking, Collecting