On my open sighted flintlock, I sight in 2 inches high at 50 yards...This puts me dead on at 75 and about 2 inches low at 100...My maximum range for deer with that gun...

On scope sighted inlines, I sight in 2 1/2 high at 100 yards...and check at 125 and 150...With my Knight Disc and 90 grains of Pyrodex R-S and a 250 Shockwave, I'm 2 1/2 to 3 inches low at 150 yards, which I consider my maximum range for deer with that gun...