just listen to the advice given and you should be good. Priming cases is what I really don't like when reloading. I can't remember the brand of press but it was either a Dillon or a hornady progressive. Either way it had the automatic primer feeding tube. During the the lever pull the primer on top ignited and started a chain reaction down the metal feed tube. Guy said it was like a pipe bomb. Make sure you always wear eye protection when working with the primers.