I don't know what words to describe the process, but since I don't feel a hard stop when I press the case in(I can keep forcing it farther than it's supposed to go and eat the case). with a drill I'm just kinda holding awkwardly it's hard to apply the same pressure each time and get the same results. I think on a fixed drill press with a single speed and everything it would give me more repeatable results.
Hey, maybe not, I'm no machinist, I just play one in my garage ;-)
I could easily be doing something dumb too, in fact that's most likely since I'm evidently the only one with these problems.
I'm quick to blame the tool for my own stupidity