Smith & Wesson Centennial Smith & Wesson Centennial S&W Centennial is a family of revolvers made by Smith & Wesson on the "J-Frame". Depending upon caliber, the cylinder holds either 5 (9mm, .38 spl, .357 magnum), 6 (.32 magnum), 7 (.22 magnum), or 8 (.22 LR), cartridges. Centennials feature a fully enclosed (internal) hammer, which makes them Double Action Only (DAO) firearms. Like all other "J-frame" Smith & Wesson revolvers, they have a swing-out cylinder. Centennial models have been made in different versions like PD "Personal Defense", LS "Lady Smith", and M&P "Military & Police" The original Centennial Model 40 was introduced in 1952,
Smith & Wesson Model 586 Other manufacturers have used transfer bar system in their revolvers. Many Smith and Wesson purists felt betrayed with what they feel is an unwarranted change. The 586 was discontinued in 1991. After a 13-year absence, Smith & Wesson reintroduced the 586 in 2012 with the aforementioned safety modifications. It is currently produced with 4-in. and 6-in. barrel lengths as part of its Classic line of revolvers. The 586-8 features a redesigned and improved yoke. In 1987, seven years after the release of the Model 586, there were reports of cylinder binding with some types of standard .357 Magnum ammunition for