Getting ready to purchase my first AR10 style rifle I know this has been talked to death before, and I've seen the tests, studied the ballistic data, weighed the pros and cons but for the life of me I can't decide between a 16" and a 18" barrel.
I know that the difference is in many aspects minimal, but I would like to hear from anyone why to choose one over the other. (even if the reason is you fear the number 18...)