On my SA's if I just run a cylinder through them or during hunting season I don't clean them unless I have a good reason. I normally clean after every range outing I'd say 3 or 4 cylinders or more. If shot numbers are on the lower end I'll just run a bore snake through it and the chambers on the high end I used Tornado and Bronze brushes and do thorough cleaning. Regardless though I'll always "hose" out the internals with the brake clean by spraying it through the frame openings and the brake clean also helps with the use of a brush to remove the carbon build up around the frame window. I personally will take down my revolvers at least once a year but it's not necessary if everything is working well and you have over lubricated it to where you have a serious internal build up or dropped it in the sand or mud.