Well would like some advice. I wanted a long range gun, all my prior experience has been with ar-15s with 16 and shorter barrels. I have always liked the Ar-10 but have never owned one ( I do own a Sig 716 but don't really look toward it as a Ar-10. So I did some searching and liked what I heard about JP Rifles. I have ordered (well put in the request waiting to hear from them) the LRB-07 with the 22inch barrel. Well I was wondering is the 22in barrel a over kill should I shoot for a 20? Also what kind of optics do you recommend?