Thread: Rifling thinge upgrade.

Well bugger me days, obviously Chop3r you know your top off the line measuring stuff, those pegs are my twist ratio guides. One is touching the one on the rifling shaft , the crank handle is turned till it`s not touching, this gives me how much slack movement there is before the r/rod moves, it`s .010mm. To get a 1-48" twist I just go half a turn of the r/rod = 1-24", or .61.20mm and _ .010mm for the slake, so you end up with a twist of 1-48". A peg is set straight up on the r/rod and cranked along till it`s pointing straight down, at .61.20mm I`v got it, will very close to it. In a 27" barrel it would not be a full turn , this is very teko stuff.
, Pegs touching, a frogs hair gap!, stop, that's your slack.
, Half turn down is half the twist.