Barrett M82A1/M107 .50 BMG rifle

I have an M/99 bolt action, and now I also added a new 82A1/M107 semi auto with a LEUPOLD MARK 4 6.5-20X50MM LR/T RIFLE SCOPE about 4 months ago. took it out for the first time on march 26, 2007 for the first time shooting it.
barrett rifle .50cal 50bmg .50 CAL big gun guns shooting m107 sniper