How do you remove the cylinder on a 357. Smith and Wesson magnum?

look on the side of the gun you will see a small screw on the right side between the cylinder and the trigger . take the screw out and there is a pin that will fall out when turn it over , do not lose it. flip the cylinder out and the swing arm will slide forward so that the whole cylinder will come out . then you can take ejector out and clean it