Quote Originally Posted by Treebone View Post
I suggest you are using way to much neck tension, whether your problem is a result of this is debatable, however looking at your figures pushing a .224" diametre bullet into a case with an ID of .212" gives you .012" of neck tension way to much, even the instructions with your bushing dies state to select a bush only .003" smaller then the loaded round neck diametre which with Lapua brass is .253"

TB.
That is a very useful post, thank you. New .250 bushing needs to be ordered I think.