I picked up a 3rd generation Glock 22 right before Christmas. There was a bulge on the base of the cases after firing.
I had good results with the Hornady .40 S&W die set. The bulge got smoothed out and the finished cartridge passed the plunk test with both the factory barrel and my Lone Wolf barrel that I just got in. However, there was still a visible outline of the Glock tramp stamp on the base. It's a minor cosmetic gripe that I'll just live with.