When I first bought my Ruger 30 Carbine Blackhawk and fired it for the first time I had two cylinders that I couldn't get the shell casing to come out without knocking them out with a dowel and a Mallet. I called Ruger and they told me I could do what they do or send it in and they would fix the cylinder problem. I asked how they would fix it and they told me this. They would take some Automotive Valve Lashing Compound (bought at the local Auto Parts Store) and a bore mop. Find out which cylinders were affected and they would start with the 180 Grit Valve Lashing Compound and the bore mop and run it in and out of the affected cylinders using a drill and then they would do the same with the 220 Grit Valve Lashing Compound and the bore mop. Then take it to the range and shoot it and see it that worked on the two cylinders that I was having problems with. If not, do the same procedure again and shoot it and do that same procedure until the affected cylinders opened up. A little bit at a time and just enough to allow the casings to come out of the cylinders with ease using the built in ejection rod. This is information to anyone who has a Ruger Blackhawk (any caliber) that has a problem with removing the casings that are stuck. Not sure if they do the same thing with the Redhawk but I would think so, the Redhawk just being a different caliber. THIS SAVED ME SOME MONEY ON SHIPPING MY BLACKHAWK TO RUGER EVERY TIME.