Are you using the Lee collet neck sizing dies? If so, the instructions that come with the dies indicate that you should size, rotate the case and push into the sizer again. I'm not sure why, but that is how I reload with the collet dies (.223, .243, 30'06 and .338), and the accuracy I'm getting is very good. I seldom reload more than fifty rounds of centerfire rifle cartridges at a time, so its no big deal.