Thanks for the information. I’ll be annealing 6 CM, 6.5 CM and maybe 6.5 PRC. I find so many .223 cases at the range I haven’t annealed it. I use them 3-4 times and Chuck ‘em.I can say that 'm impressed with mine. I would not hesitate to recommend it after using it quite a bit. It does take some effort to get the tuning correct but, it is very capable if you have a sense for what needs to take place in the annealing process....Very short fat neck cases like 7.62 x 39 can be a tough but the spacer that Burstfire may now have available should alleviate most of that issue. I did not find .223 to be any problem.