When I replied to this thread earlier, I had grabbed a couple of once fired Igman 6.5x55 brass that I had. I popped the primers out and measured the pockets.
Today I decided to reload some 6.5x55 rounds for a range trip. I grabbed a whole box of once fired Igman brass and began decapping them. The first two or three worked fine. Then, I ran into a couple that would not release, and actually lodged in the shell holder with the primers part way out. I managed to break them loose. Thinking that my decapping setting was incorrect. I tightened it up a bit so it would push the primers completely out. That worked with some coaxing and further adjustment. However, on the next round the decapping pin stuck in the case, and when I pulled up extra hard, it pulled out of the decapping die and remained in the primer hole. I had to Dremel the case to get the pin out.
That reminded me of this thread. I did a bunch of reloading several years ago with this Igman brass when I had a 6.5x55 AI. I never had a problem with decapping until now. The flash holes in the Igman are definitely smaller in my current batch of brass. I hate to throw the brass away, but I don't know an easy way to remove the primers so I can drill out the plash hole.
Any ideas?