I watch the guy hand loading at the range with a wildcat kind of a 22-250 round he was counting individual powder grains and he was getting 4800 feet per second at the end of that tube. When he was going for speed only periodically there be a puff of grey in front of the output at the end of the barrel I talked to him about it and he said that that was where the ballistic Point actually blew up from centrifugal force so he was right on the bloody edge.

:'(