I have a Ruger Mk III, SR22, S&W Victory, S&W 617 10-shot... love em all. Canít go wrong with a Ruger though Iím not crazy about the Mk IV. Iíve reached that age where everything new is not as appealing as tried and true. Itís just a phase of life with little logic to it. My 617 is brand new, with the lock. Best .22 revolver I have ever fired, bar none.