.243 won't chamber
I have been loading my .243 for 5 or so years now with no problems until now. The last 100 rounds I loaded have a few that won't chamber. Most go in with some resistance, but I have noticed maybe 1 in 20 won't chamber at all. I have double checked my c.o.l and my die setting. Its a full length sizer and the rifle is a bolt. Is my die worn out? I did buy it used. Any help would be greatly appreciated.