I have had this happen with many different cases in the past. Most often it was with the Blue Magic case but also with Rem All Americans(1970) and other target load cases. Never had it happen with a Win AA but have heard of it happening with the "NEW" 3 piece AA cases. Surprisingly never had it happen with Fed Gold Medal..but haven't used the new ones. In fact I bought 55000 GMs from NSSA years ago and used 'em till the cows came home. Had a few other cheap Fed cases in the batch but they got loaded one time and were thrown out. It can happen to anything I guess..but usually with cases with paper base wads in my experience..of course when I started loading..paper was all we had...sigh! Smelled much better than these new fangled shells
