Just my opinion....
I would FL size and totally "prep" ALL the mixed brass. I would then cap them with spent empty primers and do a capcity test to ensure that the cases are sorted by capacity and group them by whatever deviation I was comfortable with (and that will depend on your goal - the more accuracy desired - the closer the groupings will be).
I would not use case weights in mixed brands, as this does not give a true indication of case capacity deltas.
Not an easy task... but if you are going for accuracy, it's the only way I can think of...
PS - Keep them B's together once you sort them!
Jim
Bookmarks