YOU'RE SURE that your powder weigh scale and other equipment is calibrated and not totally screwed up?????
Did you measure the fired and sized case with a micrometer or caliper at the buldge?????
I double checked my rcbs scale with my Hdy digital and their right on. The bulge measures .005". The more I research this the more I see it just may be indicative of the Marlin chamber. Thanks anyways.
