One of the questions that is floating around is how to sight in the AR-15. The AR is an unbelievable platform that works well for Law Enforcement, Military, and Civilian competition. The AR is accurate, low recoiling, and completely customizable making it the best choice for many shooters.
D.R. Middlebrooks of Tactical Shooting Academy is famous for saying the AR is good for anything from 3 yards to 300 yards. Considering your options for setting up your gun, one must determine the correct point of impact.
A few years ago Richard Fairburn wrote a great article on the difference sighting in at 25 yards and 1.2″ below aim at 25 yards. It doesn’t seem like much, but it makes a 9″ difference at 200 yards. I realize that most of you don’t get out to 200 yards that often, but sighting at 25 yards makes you shoot 9″ high at 200 yards, while sighting in 1.2″ below at 25 yards will lead to a drop of only .7″ at 200 yards. Seems to make sense doesn’t it.
Check out the Fairburn’s entire article here.