This would explain the interior destruction and the small exit hole. I was never able to reconcile the two together with the 140 Accubond. Nosler ads show the bullet mushrooming and retaining most of it's weight @ 3100+ fps. Result has always been a deer down under 75y. Hard to fault that record. A high shoulder shot might get me the " bang flop". For some reason I am programmed for the heart shot. I spoke to one of the tech guys at Berger a few months ago seeking 280AI load data. I got the impression from this guy that the Berger might be too frangible for a close shot from a high velocity cartridge like the 280Ai.