I am shooting 80.5gr retumbo, 215M, 168s at 3110fps in a 26" barrel.
Buddy is shooting 81gr retumbo, 215M 168s at 3200 in same gun.
Both guns are custom built so work up. It also will depend on gun, since he is getting 90fps more out of .5 gr in his gun, even though they are copies of each...