Now this is pretty incredible. A 1000 yard shot is nothing to sneeze at. I have done it, and it takes a bit of skill to do it on a consistent basis, as well as an understanding of your equipment, physics, and your environment.
This video, wow. A cold bore 1000 yd shot, off hand. Granted, he is shooting a .50 caliber rifle which simplifies some of the physics. To offset that though, the rifle weighs 37 lbs. and he did this from standing. I guarantee you his sight picture was dancing all over the place. Watch. Be amazed. Don’t try this at home.