Anyone else having trouble getting enough neck tension on .45 LC cartridges when seating .452" (measured) cast lead bullets? I've got both RCBS and Lyman dies and both sizers don't seem to reduce the neck area enough. Cases are R-P and W-W of fairly recent manufacture. I don't really want to get into another set of dies, so, are there any "thicker" necked brass sources out there?...Like Starline? Thanks in advance, Rodfac By the way, .4515" measured Sierra jacketed bullets just fall down inside the case.