The biovals were designed with tight bores in mind. chopping and jamming are drastically reduced.
Originally Posted by Outcast569
Bought some MT off Amos back at Claybank and never again will I use them with a tight bore. Too random for my vsr's 6.01. BBbastards are the only brand that go threw it without jamming every so often. The only time I use the MT is in the grenades to use them up lol.