Ok so I'm working with an rcbs rock chucker and think my carbide dies may be set incorrectly. Since I don't yet have any powder and I'm totally new at this I decided to deprime some of my few thousand rounds to prep for when I have powder. Set up the die according to the directions but after pressing out several primers I examine the cases and seem to find that they appear to be bulging in the bottom of the case right above the primer pocket. Don't have a micrometer yet so I can't give measurements but I don't want to blow through deforming the rest of my brass if this isn't working out. 5 of the 6 in this photo have been pressed. One has not. Am I seeing things or is my press deforming the brass? Look closely at the bottom 1/3 of the case. Any advice is welcome. I'm at a loss here.