Yesterday, at a local gun show, I picked up a Ruger Bisley Blackhawk in 45LC. While cleaning it, I noticed that the cylinder seems to stick. I removed and reseated the cylinder a number of times. At this point, the cylinder will "catch" during rotation, but doesn't stick anymore. I have 3 other Ruger SAs (Super Blackhawk, Vaquero and Vaquero Bisley) and have never had problems with the cylinders. This gun was new. Any comments appreciated.