I tried three different loads in my FN PBR 20" rifle using a Leupold mark 4 3.5X10PR scope, I wanted to see what the rifle could do with more than just a three shot group. All shots were taken from 100yards from a prone position using a back pack as a rest. The temprature was 95F and there was little cross wind
168grain Federal Gold Medal Match 7 shots @ 100yards, used my first three shots as sighter shots.
168grain Hornady Match 10 shots @ 100 yards
168grain Black Hills Match 10 shots @ 100 yards
All in all i'd say my gun likes either the federal gmm or hornady match the best.