It required more energy to move a heavier object than a light one. If you assume the amount of wind was constant and carried the same energy, then given the same exposure time to it the heavier object would move less. Obviously the heavier pellet has a longer exposure time, but Brian can work out the small difference in terms of split seconds. Side profile is probably a minuscule difference to the overall effect. Time to target and mass are more of an effect. Which is why long range sniping calibres tend to be heavier. .50, .408, .338.
BFTA/NSRA County Coach
CSFTA Chairman/BFTA Rep