Lee's collet neck die has a mandrel to determine the neck's inner diameter. You can order differ mandrel to cater for your bullet diameter.
I haven't used other brands of neck dies. I read they don't have such mandrel or expander ball. There are 2 ways to deal with the issue, I suppose. You can send the die to the manufacturer to have the neck honed larger. Some manufacturers do that for a fee and some don't. The order is to turn the brass' neck wall thinner. When comes to think about using this sort of neck dies, I would turn the neck anyway to ensure uniform neck wall thickness.
-TL
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