8mm JS question - Lee neck expander die

[armoredman]

Hi, guys - does anyone know if that Lee Universal Neck Expander die will work with a .323 neck for cast slugs in 8x57 JS? :-?:confused:

[Powder Burn]

Yes, but it takes one of the inserts to full depth, the smaller insert of the two. Just finished my 1st casting/loading for 8MM and it seemed to work well.

[mikeym1a]

I patch my 8mm, and the standard expander won't work. I got the expander for the 8mmMS, and it opens the case mouth just enough that I have a friction fit when I finger seat the wrapped boolit. I then put it in a collet sizer with the primer punch removed. That works for me, don't know if it will help you. mikey