Bought a lee collet neck sizer yesterday for the WSM. I will report on if it works for me when i get a chance. The little i played with it last night i found out Like i did with my .270 i had to chuck up the mandrel in a drill and polish off .001 to get a snugger bullet seat. No big deal, and it even tells you in the instructions you may have to do this if you want a tighter fit. Both of the dies i had from them were factory sized as a real light press and i could actually push the bullet in further with my finger. The .001 polishing made them perfect IMO