howdy.
i've picked up a m16A1 pencil barrel, but somewheres in its past' someone cutt her back to 18.5 inches.
rifling looks very good' i'm having steve at adco re-crown and re-thread.
its a 1/12 twist, so i'll pretty much only use 55 grainers.
my question is, what kind of velocity can i expect with federal XM193F ammo ?
out of a 18.5 inch barrel ?
peabody
i've picked up a m16A1 pencil barrel, but somewheres in its past' someone cutt her back to 18.5 inches.
rifling looks very good' i'm having steve at adco re-crown and re-thread.
its a 1/12 twist, so i'll pretty much only use 55 grainers.
my question is, what kind of velocity can i expect with federal XM193F ammo ?
out of a 18.5 inch barrel ?
peabody