Yeah Black Hawk, I have heard good things aswell about Hart barrels. I do think I am set on the 7 twist, I may be taking a gamble with it according to some but I have a sneaky suspition that it will be a wise choice for the bullet choice I made, though, I am looking forward to trying some other makes other than Bergers. I'll find a dinger for sure, trial and error. Hope it dont take to much error.