While reloading a few hundred rounds of .45 ACP today a finished round failed the Dillon Gage test. The brass stuck out about 1/4 inch above the top of the gage. The question is did it fail to seat because the last time it was fired by somebody, their gun had an oversize chamber? Does anyone know of a problem with A-MERC brass? This is the first time I have ever seen this in over 10K to 20K of .45 ACP reloading. Thanks for listening.