Going goose hunting with my son soon and need some advice on what load to use for Bismuth-tin. Haven't been goose hunting for some time. We can not use steel as our guns are not choked for it (fixed chokes on older guns) and I understand that we can not use Hevi-Shoot until we put in chokes. My son is shooting with a 3" semi and I'm shooting a 2 3/4" semi. What would you recommend for either gun? Thanks. 
