65BR, that was a very unusual shot indeed. Fact is I have made three shots on mule deer with that gun, a 7/08 (not AI) at over 500 yards. Here are the spec's on the gun: Stiller Tac30 action, Broughton 5C barrel #3 tapper, MCM hunters edge stock, rifle basix LV1 trigger, talley rings and bases, Leupold VXIII LR 4.5x14x40 SF, Lapua brass (308 necked down), 175gr SMK. The shot was made from a seated position using a shooting stick of my own design and build. We watched that buck for about 3 hours and could not get closer to him (my fault - I don't get around very well antymore) So we set up my seat and my sticks and waited for him to come out of hiding. HE DID AND I DID AND HE TASTED REAL GOOD TOO.