Do any of you go by the charts and sight in your rifle at 50yds first ?

I have been playing with my Savage Mod 10 FP-SR, using 150gr SPBT's and set it up about .5 high at that range. The velocity is ~2850 and according to the charts it is on at about 175yds, and from my limited shooting at gongs that seems about right. Was knocking the fudge out of the 200 and 250 yard steel, had to aim about 2 feet high on the 400 yard gong ;- )


wll