The Winchester Model 63 or Model 1903 is a family of semi-automatic rifles chambered in 22 Win Automatic or 22 LR. A 20 or 23 inch barrel is adorned with open rifle sights. The Model 63s tubular magazine runs the length of the buttstock. That walnut stock also offers a handsome contrast against the blued steel of the barrel and receiver. These easy cycling small game hunting and plinking rifles have stood the test of time since there initial introduction more than 110 years ago.