My post was in response in to BLE's #11. And yes, the bullet will continue parallel to it's original path. Otherwise you wouldn't get the linear deflection for constant wind. If the bullet would change direction, the deflection would be exponentially increasing with distance (which everyone agrees it is not).
Actually, wind drift is
exponential with distance in a constant wind.
Here's the calculation of a standard velocity .22 long rifle bullet in a 10 mph cross wind.
25 yards 0.3 inches
50 yards 1.3 inches
100 yards 5.1 inches
200 yards 19 inches
It's linear to wind strength, exponential to distance.