Originally Posted by j-man
I will definitely try your first suggestion.
What is the solution for your second one?
Well, leaving the expander ball loose to float can help as it will self center. This can be done by placing a small o ring under the lock nut and only finger tighten. Also raise the ball up as far as possible. That will require a seperate decapint step. Make sure an adequate amount of lube is used and a little on the insides of te necks can help. Then make sure to clean off the lube.
The bast way I hav found that cured it all for me was to sell all my dies and buy redding bushing dies. Not cheap but I now have very true ammo.