Originally Posted by WisconsinDeer
The wind drift depends a lot on the ballistic coefficient of the bullet that is being used. A light, flat based bullet will have a low B.C. while a heavier, boat-tail bullet will have a high B.C. Velocity and sectional density also come into play. A .270 wont always buck the wind better than a 30-06 or .308.
as we said, ALL factors come into play. B.C, S.D, powder, primers, bullet wieght, wall concentricity, etc. i shoot the 135 gr. Sierra HPBT match for my long range (800+). however, this year i got into the new SST from hornady, and my groupings at just over 800 yards, are slightly larger than my Match rounds. those things are AMAZING!