1. Long-range old guns of the same level
Because it is the ultimate distance, when my aim just covers the target's head, I hit the body, so when Guagua raised his gun and threw it out, it was a headshot. Aim at the head of the target in a horizontal line, and the helmet will not fall off. So that's what I said. If you want to blow your head off at the extreme distance, you must lift it up a little.
2. Moving target prediction
After the bullet flies out, it takes a while to fly. At this time, if it is a moving target, it needs to move forward. This is not easy to test, so make a slightly short-distance lateral motion prediction.