Smith & Wesson Model 320 inches. "The History of Smith & Wesson Firearms" By Dean K. Boorman Smith & Wesson Model 320 The Smith & Wesson Model 320 was a revolving rifle produced by Smith & Wesson in the late 19th century. The Smith & Wesson Model 320 is the rarest Smith & Wesson in existence and highly prized by collectors. The Smith & Wesson Model 320 revolving rifle was based heavily on the design of the Smith & Wesson Model 3 pistol. 977 revolving rifles were manufactured between 1879 and 1887. They were serial numbered 1 to 977, with 840 being sold in the
Smith & Wesson Model 39 wadcutter bullets only). The shape of the rimmed cartridge limited the magazine capacity to five rounds. A further variant, the Model 952, in 9mm Luger, is still produced in limited quantities by Smith & Wesson's Performance Center. The Model 52 was discontinued in 1992 when the machinery to manufacture the pistol broke down and it was deemed too costly to replace. The Model 39 was the basis for the later Smith & Wesson Model 59, retaining the original 9mm Parabellum caliber, but incorporating a wider aluminum frame with a straight backstrap to accommodate a double-column magazine that could hold 14