The video clip is shot from inside a live fire shoot house from a "down range" angle. It is not a camera mounted on a tripod as it swings when the second shooter enters.
Yeah that took me awhile to realize, what the heck, i know people know the limitations of their firearms, but its not like accidents don't happen.
I think its dumb what the camera guy, (or guys if you count the video) are doing, one slip up and YOUR LIFE IS OVER........meh not important.....?