I have a couple issues here maybe you more experienced folks can help me with.
#1- I bought a new Hornady neck turning tool. When I insert my new case into the proper shell holder and tighten it down, and chuck it in my drill, and turn it on, it wobbles horribly! No way will I be able to turn it-it's that bad! #2- New cases will not fit over the mandrel supplied with the machine.-Is this why I need the expander mandrel you spoke of?- So, if I want to neck turn new brass, I would need to insert an expanding mandrel into my press? and then neck turn?