Sounds like a trick question at first. But do see for yourself at http://www.youtube.com/watch?feature=player_embedded&v=BJD_3eKcIRQ
The high speed videography (I had to look that word up to make sure it was in fact a word) is as impressive as the marksmanship of the shooter. Also interesting is how a marshmallow can change the trajectory of a 671 grain projectile traveling at ubersonic speeds (I didn’t bother looking up ubersonic). He also did some Easter Eggs of some sorts. My limited attention span really only focuses on the absolute coolness of the rifle.
Those defenseless peeps in the front didn’t stand a chance. This does reinforce the fact that if bullets (of any size) are coming your way it is best to seek some sort of cover.