I shot a small buck last year with a muzzy 100 grain 3 blade just behind the shoulder.He ran 20 yards and dropped.Blood flew out in buckets.When I got to him he was lying on the side I had shot him at and was perfect three slots going in.When I rolled him over to the opposite side he had a 10 inch ripp where the arrow came threw.Can only figure the arrow partially came out and the blades left in him ripped him open as he ran off.First time to see this.Always had clean blow threws before.