don't worry about small dents too much as soon as you fire the dents will come out. are you planning on only using this brass in one rifle ? that's fire forming to that specific rifle which is how i do it.if your not crimping just go ahead and resize for the first time don't trim and load it up and shoot them in the rifle and your brass will be ready to trim it will be formed to your chamber that is the most exacting way i know of ?