And that is what IMO makes these type of shots fun, but maybe not practical. We did this at a red dot pistol school. At 100 we got almost everyone to where they could make consistent hits . At 220 though it was a different story. It was taking a lot of time, multiple shots, and someone telling you where your misses were. While I have absolutely no problem with people working this skill, it should not come at the expense of shortchanging more realistic self defense skills and tactics. (If that is your goal).That is th trick. Otherwise I want to drop the gun to see were the bullet is impacting. I tried my hand at 220 yards on some pepper poppers one time with a Glock 23. I never did figure out where the bullets landed so that I could estimate how much to hold over (I only tried a couple of shoots) I did see a guy with a Glock 34 hit the larger popper at that range.