I made a sizing die for sizing my 32-40 boolits and sneaking up on the inside diameter of the die was challenging. I successfully made the die copying the design of the Lee type sizers. However, I remembered the neck bushings from Redding I use to make 20 Practical cases from .223 and I wondered if anyone has used the neck sizers to be incorporated in a homemade die for cast boolit sizing. Has anyone tried that? Is the lead in the neck bushing tapered enough to permit boolit sizing in such a contraption? The benefit would be the interchangeability and experimentation with different diameter bushings. What are your thoughts?