People on other forums, report good results with them in bench rest competion.
Gain twist has been around since the time of the american civil war so its nothing all that new.
Rimfire?I’m going to try a 13.5 to 13 gain twist bartlien.
Yes sirRimfire?
Mine is 16.5-16. Most RF BR barrels are 16 twist. Are you going to use heavier bullets or ammo?Yes sir