RE: 300 Ultra Mag for Brown Bear
He walked about 50 yards and fell over dead after taking one arrow through the heart at 18 yards. He looked right at me when I drew on him so he knew I was there but just didn't know what I was or didn't care. But I still stayed put until I knew he was down and then went back to camp to get the rifle before tracking him. Like I said before, no amount of "bigger" makes up for "better". Even a bow will effectively kill a bear but it has to be in the hands of someone that appreciates its limitations and is willing to live within them.