I am having a problem with the sizing of .45acp. I know how to set a die and have moved it down to shell plate and even up a little. Its not old brass or bad brass because I have checked it with several different once fired brass. So my question is since I dont have a second die to check this on. Can a Die go bad. I am using a Hornady New Dimension. It sizes with what looks like a brass ring. Could it just have opened up on me. I measured with a Cal but its reading normal. I really im baffled here. Tomorrow i will borrow a Die from Chris to see whats up. Could there be any other steps I can take etc.