My buddy did that to his Ford van's mirror a few years ago w/a 22-250 AND HOT LOADED 55 BT's (I loaded them). Cost him about $600 to get it replaced and the body work done!. Also another buddy (where do these guys come from?) cracked the windshield in my S-15 and later shot the end off of the antenna w/a 300 WSM, Damn kids anyway! I don't get to go to Augusta till May 21 or so to go gophin', can't wait-Muddy