Thread: Case head separation imminent

Very early in my .303 "career" I had a quantity of milsurp 174gn ball IIRCmk7rounds
.Anyhow a few of these rounds did this -bloody disconcerting when you opened the bolt only to eject the case head .A quick but radical solution was a rat tailed rasp inserted -it removed crapped out cases no probs .Later when I was in the process of handing kit in on leaving the TF was given a.303 case extractor of military type !Idid a fairly thorough check of the remaining -approx6cases had a very bright ring around the web-Instant discards .Idid some enquiring about causes most reckoned it was brittle brass getting worse as it aged.after this it was wqinchester brass whichIIRC has had 1xreloading.