Traditional slingshots aim at three points and one line.

Hehe, pay attention to the optical sight of the gun (the thing with a small gap at the end of the gun)-anvil hole, with scales on it. When the distance is long, the scale needs to be adjusted. In other words, the farther the distance, the higher the scale, so the higher the height of the muzzle and the farther the range. Of course, the trajectory is an arc, and the bullet can only hit the target at a calibrated distance.

Also, the bullet was not killed by penetrating force, but by tilting force.

The sights are all located above the firearms, and they are calibrated before leaving the factory to ensure that the bullet falls in line with the aiming point.