Pre-WWII production Winchester Model 63. These pre-1942 examples benefit from pre-war steel quality and craftsmanship standards that were superior to wartime production. The finest factory Model 63 examples. Type: Rifle Action: Semi-Auto Caliber: .22 LR Capacity: 10 Year introduced: 1933, USA Weight: 59 oz Overall length: 42" Status: Discontinued Intended use: Collecting