It doesn't take severe wind. A 180 gr 30 cal bullet started at 3000 fps is moved almost nine inches at 300 yards by a 10 mph wind. At 500 yards it is displaced almost 26 inches.

I don't claim you should stop shooting prairie dogs. By all means continue, the farmers and ranchers couldn't stay in business without you. But watch the grass and mirage everywhere, for it will tell you much.

Take care, Tom