Product reviews for 390 Ball Double Cavity Mold

Casts nearly sprueless balls if mold is kept tight and smoked. I cast them 100 at a session and put them in a ziploc bag with "Bore butter" and tumble them either by hand or by drum tumbler. Doesn't take but 10 minutes to completely swadge them all. Work great in my .40 cal Vernier flintlock and as 410 bore slugs.