I'm a newbie and have just purchased Dillon 550b with Dillion's 9 mm carbide dies. I'm using 124 gr berry bullets with round nose and hollow bass, hodgdon's tightgroup 3.6 gr, Federal Premium primer, oal is 1.150. All of the bullets fit fine in the bullet gage as well as make the classic pLink RemovedLink Removedlunk noise in the barrel. My question is about the shape of the reload it appears to be an hourglass shape with a bulge at the bottom and top of the brass. The pictures hopefully show my dilemma.
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