I know, a terrible phrase to hear. At 1,000 yards should this become a major factor? I did some calculations using one of the online ballistic calculators and the spin drift was over 6 inches at 1k based on my input variables. The reason I ask is that I tended to hit to the right of center. The very bottom hit was done by a friend with a different rifle. It was his first hit ever at 1,000 yards. Very little wind (based on flags along range) and the rifle was dead on at 200 yards. Quite a bit of mirage though. I'm still learning this long range stuff so please bare with me.