@Haofan123: Personally I think it would be pretty close, but you're thinking Vash take this then? I should mention the fist thing, he didn't actually hit it in the same spot 5 times. He just shot it enough to make it change it's trajectory.
Shooting the wings of a flies back is a lot more impressive a feat I would argue. But still Vash is pretty amazing, bullet dodging wise I think he has the big advantage.