I bought a set of Lee Deluxe dies for my .308 and I'm having a problem with cases getting stuck in the full length sizer die. I use Imperial die wax on my cases. When I am inserting the case into the die it gets hard just before the web area of the case. I have Winchester and Federal cases and it doesn't matter, both cases get stuck. Since Lee does not sell small base dies I don't understand why my brass is so hard to size. Can anyone shed some light on this problem? Thanks