Instead of buying a short base die. I’ve resorted in taking a couple thousands off a extra shell holder. Had to do this in 223 and 308 so far! Beats buying a new die! Also tight chambers. FixedThe ONLY Ar15 jamb problems I have ever personally seen that were traced to a chamber, was on a barrel that was marked "223 Match". I knew this was a tight chamber, and it was CLEAR that 556 should NOT be fired in it. However even 223, if brass was not sized with a small base die every time, I'd get jams......most others can be traced and eliminated like the others have said.
Del2les replied as I was typing.....What he said