So lately I've noticed I'll have several rounds in a batch fail at the case gauge check. The rim of the case will sit just above flush. Many of these will still fall into a Glock barrel without too much issue, but some will hang it just out of battery. I haven't made any changes that I remember recently on my 650 other than the powder charge (as I went from 147gr to 124gr). Any suggestions as to what to check or where to start? Thanks all!