Originally Posted by Pond, James Pond
On a more practical note: surely, with an M4 firing in your direction, you wouldn't really "hear the bullet whizz", as one of the two "presenters" claimed in their video, would you?
I have personally heard a .22 whizz by my ear. I'm not sure if you'd hear it above the report of a gun fired from that close. In my case the rifle was at least 50 yards away.