I was just thinking about this. I remember seeing some clips on youtube about a regular guy reacting to an arrow. The conditions were pretty specific, and I don't think he could actually see the arrow moving either. What I'm wondering is if something similar applies to Batman and bullets.
Can Batman see a bullet in flight, if the shot happens from far enough. Or is he like a regular human against an arrow?
Is it possible to see a bullet, but be too slow to react to it? Are there comic characters like that?