That makes sense. The reloads for my friend was a one time proposition. He provided me with the new pre-primed cases and the lead bullets. I ran them through the sizing die without the deprimer pin installed and I did not notice the "bulge".
So I'm guessing that with my once used cases, the previous firing caused the so called bulge and resizing / depriming made the bulge noticeable.
I'm going to try a few brand new cases just to see if I have the same situation or whether it's limited to once fires brass.
As for firing them, they are strictly for my S&W wheel gun so they should be reusable for a while.
Thanks for the reply..