What powder increments for checking best accuracy?
I have a T/C Triumph and shoot Barnes 250gr Spitfire TMZ with about 120 grains of BH209 and it shoots decent. I was thinking once it cools down abit, I'd try to find out how good I can really get it to shoot. I wouldn't mind shooting the round-robin OCW method at about 5-6 separate targets or so, but in what powder increments (by volume) would I need to show a significant amount of change? Thanks.
What direction did that last shot at Kennedy come from?