It looks like I'll be buying my AI AT by the end of the year. I'm sticking with 308 for now and will be buying another barrel (likely a 26 inch 6.5 CM) in the future. This rifle is strictly for target shooting and maybe non serious PRS type competition. Currently have access to 1360 yard range. Currently dont have a 308 suppressor and one is not in the near future plans.

Should I go with the 20 inch or 24 inch 308 barrel? Am I going to see enough of an improvement in downrange performance with the longer barrel to justify the extra length? I plan on going for the 1360 gong.