Boats,

 As you know we're gonna have to assume a LOT of things. Without things like BC, Altitude, Temp, & Bar. Press. I can't give you an exact run down. But using the same criteria (Std. Metro) for each of your two bullets & their respective MV's here's what Oehler's Ballistic Explorer comes up with figuring a 10 mph wind at 9 o'clock.

40 gr. bullet at 1080 fps

Wind deflection at 50 yds. - 1.30"
Wind deflection at 100 yds. - 4.91"

29 gr. bullet at 855 fps

Wind deflection at 50 yds. - 1.00"
Wind deflection at 100 yds. - 4.01"

 Seems kinda strange you'd get less deflection with the lighter bullet.

PETE

Boats,

  You're right! Checked again using the same MV, plus found some cast bullets in the Bullet Library that are close enuf that the BC's would be better to.

40 gr. bullet at 1080 fps

bullet deflection at 50 yds. - 1.29"
bullet deflection at 100 yds. - 4.85"

29 gr. bullet at 1080 fps

bullet deflection at 50 yds. - 1.61"
bullet deflection at 100 yds. - 6.02"

  The differences between the 40 gr. results in this message as compared to the last one are due to getting a better handle on what the actual BC could be. Not exact for either as I don't know the bullets your using and what their actual BC is. What I've found is that you can have some slight differences in the BC's from actual and it won't make all that much difference in the results as you can see by comparing the 40 gr. results in this and the previous message.

PETE