Guys,
I am having a .600 BPE double rifle built. It is going to be using 20 gauge barrels turned down to fit inside of a very large SxS. I am going to use 20 magtec brass that are 2.45". The barrels are 1/28 twist. What weight boolit do you think I should go for? I already have a .577 and shoot 535 and 560 grain cast boolits.
Thanks, TC