I got a ruger rpr that has everything changed out on it except the original bolt, screws and obviously action. I got a krieger 308 barrel thats 30 inch long. So i like it but im thinking on going to either 6x47lapua or 6 creed. Im leaning towards 6x47 lapua but cant decide on how long of a barrel. Prolly gonna go with either a heavy palma or m24 type profile, and maybe 28 inch barrel. With my seekins atc brake ill come in about 30inch total. So what is the optimum barrel length for those calibers when your trying to get as much speed as possible but not tearing up the brass. Id like to shoot 105 grain bergers around 3000 fps or 109 grain sierra matchkings about 3000 fps. What does the hide think on the matter