The Yellow Boy, the first rifle sold under the Winchester name. The improved brass receiver Henry rifle that launched the Winchester Repeating Arms Company. Saw use across the American West and in numerous foreign conflicts. Type: Rifle Action: Lever-Action Caliber: 44 Henry Rimfire Capacity: 17 Year introduced: 1866, USA Weight: 9.5 oz Overall length: 43.5" Status: Discontinued Intended use: Frontier Use, Hunting, Export Military