neck turn die wont fit my sized cases

[UT PROSIM]

i have Forster neck turner, and the die is too big for my sized cases, the trimming die fits but the neck turning dies only fit un sized cases. i use remington brass which is thicker that most. how do i fix this problem?
Pat

 

[Walkalong]

You can get a bushing die to size the necks to fit your neck turning mandrel, or you can get a custom expander like these from Sinclair to expand the necks to fit your neck turning mandrel. The Sinclair neck expanders also fit their neck turning tool.

 

[Dave P]

Most neck turn tools require you to precisely set the ID with their neck mandrel, before turning. Look at their catalog, or call them.