Quote Originally Posted by Parabuteo View Post

Another consideration may be a collet sizer which will produce a much better more consistant neck, but again it's Lee I use Lee in a Forster press, along side RCBS, Redding, Wilson and Forster dies and they all work well. True, you need to know what you are doing with the Lee dies and they need lubrication (of the collet and cone faces etc) but they work well
If the new expander button doesn't cure the problem I'll look at getting a collet die set, or possibly an expander mandrel. I use the Lee collet die set in my .375 H&H and it does work very well. I might end up getting one for the .223 too!

Cheers
Greg