The Smith & Wesson Model 617 is a K-frame revolver chambered in .22 LR with a 10-shot cylinder and 6-inch barrel. Used in USPSA Rimfire Revolver and ICORE Rimfire competition, the 617 allows rimfire competition practice with full-size K-frame ergonomics identical to the .357 Magnum models used in centerfire competition. Type: Revolver Action: Double-Action Caliber: .22 LR Capacity: 10 Year introduced: 1990, USA Weight: 44.5 oz Overall length: 11.1" Status: Active Intended use: competition, USPSA, ICORE, rimfire, target