Working to load about 100 rounds of 6.5 SAUM. Sizing the brass with imperial wax as I always do. Was working 100 pcs, got through about 90 of them before I felt a weird stroke on my Co-Ax. Thought it was the brass itself, then when I finished with the last one and pulled the die, I noticed a substantial crack in the die. I’ll call Whidden tomorrow but has anyone had this happen with their sizing dies?