Quote Originally Posted by bootsmcguire
Me I just prefer a tad heavier bullet for bucking the wind, my 22-250 and 243AI shooting 55 and 58gr bullets work great.
That is entirely you perception then. Velocity and BC are all that matter for determining wind drift. The .204 and .22-250. shoot bullets of similar BC at right at the same velocity. It isn't until you get into the much heavier bullets for the .22-250 with their much greater BC's that the difference becomes apparent. The .243AI has a decent velocity advantage and when you get into the 65-75gn bullet weight range, the higher BC with that higher velocity really allows it to step away in the wind drift department.

The 12FV in .204 is really hampered by its standard 1:12 twist barrel. That slow (though it is the SAAMI standard) rate of twist rules out the two best bullets for the caliber, the Berger 50 and 55gn. Still not quite as efficient externally as the .243 can be, but uses about half the powder and is easier on the barrel.