Ball is 1.67" and weight about .60 lbs in zinc. It is close to the same weight as cast iron. Rotometals sells them from a mould I had made and lodged there. I don't think I am allowed to put up a link so you will have to google them. They have other cannon balls made from my moulds. Popcan 2.59" size and a 6PDR. THey also have balls for standerd size fitting Hern 2-1/4 inch bores and 1.003" for Inch bore guns with windage-bore 1 1/32"
Yes for blanks and golf balls the load I use is just fine. But zinc needs a much reduced charge.