I'm currently loading the 7.62x40 WT with a Powder coated Lee C309-150-F, with an Aluminum gas check. The seat plug that came with my Hornady Die set is causing havoc with the nose of my Boolit. It works great with 150g FMJ's, Lead not so much. I found the Custom Bullet Seating Stems on Hornady site for the A-Max, FTX and others, but have no idea if any will fit. A flat punch would work, if I new where to get one. Suggestions ???