I'm new to this reloading thing so bear with me. I would like to start reloading for 45 auto, 9mm, and 223 rem. I recently purchased a Lymann tumbler and a Hornady Kit. The problem that I am having is getting the brass clean. I bought the Lymann green corncob media. I was having problems with a dull finish on the outside but I seemed to have taken care of that with the dryer sheets. Now the problem is the inside. It is not getting near as clean as the outside. Should the inside look just like the outside, and if so any advice on how to go about that. Thanks