The Winchester Model 1866, known as the "Yellow Boy" for its brass receiver, was the first rifle sold under the Winchester name. Tubular magazine, lever action, and side loading gate. A cornerstone of American frontier history and Western expansion. Type: Lever-Action Rifle Action: Lever Caliber: .44-40 WCF Capacity: 13 Year introduced: 1866, USA Weight: 96 oz Overall length: 43.5" Status: Discontinued Intended use: Collector, Cowboy Action