I shot a 6x7 bull elk on opening day at 9 paces (meters) with my Rem 700 in .338 Win Mag , the 250 gr. bullet hit exactly where I pointed my rifle, that was the most flat shooting bullet I have ever seen, that is pointed, not aimed .
As far as I am concerned, the .338win is the flattest shooting caliber available ,
FLAT , From zero out to 9 meters, amazing, simply amazing