Same way a 25mph gust can knock my 250lb ass over or it pushes your car across the road.
The BC of the projo will affect how much drag and performance in the wind but the bullet will always experience wind drift.
If you’re zeroing, try to do it on a calm-ish day but if you’re shooting groups, then wind isn’t so bad depending on the speed (steady and no gusting).
You measure groups in the vertical anyway and not the horizontal. Horizontal is almost always reflect environmental effects and shooter error, so we don’t measure group size in the horizontal. I bet that starts an expert shit storm.
Get a couple of Bryan Litz’s books on it. Very dry and boring but it’ll turn on the lightbulb.