I can roll crimp 20, 12 & 10 gauge. I have 600jrs for everything but 16.
A lot of the recipes call for roll crimps. If the data specifies roll crimps, star crimping will increase pressures. If the recipe specifies star crimps, roll crimping will lower pressure. Precision roll crimpers are supposed to be superior to the BPI product.
I'm going to be ordering more shot this year. Most of the TSS I'm shooting is size #6 and that bottle is almost empty. #6 is really too big for turkeys but noone else but

turkey hunters understand the need for TSS. Y'all are special

Hal last quoted me $53 for one pound delivered to my zip code. There is an additional premium on 9-1/2, 10 and 11 sized shot.
If you bump the quantity up, the price per pound goes down.