What direction is the prevailing wind in relation to what direction the range is set up? What I'm getting at is I generally only worry about cross winds or quartering winds. If the wind is directly in your face or at your back I wouldn't pay much attention to it. I am painting with broad strokes here and of course none of that is hard and fast, but time and experience will teach you to tweak if and when you need to. When developing and shooting at 100yds I prefer to have the wind (if there is any) at my back. Probably not an option for you, as you can't change what direction you shoot at, at a range, but maybe its setup that way already. Shooting at 100yds does limit the environmental impacts and operator error. Which is why it is a good place to get better data. A little wind (0mph-5mph) isn't going to stop me from getting it done at 100yds.