wareagle, would you consider a dot sight category just for fun? i fired a 10-shot string with my burris crossfire III 3-moa dot this week with so-so ammo (federal 55-grain fmj) just for fun and kept all 10 rounds within a 3-moa square at 100 yards. i'll put a scope on my carbine at some point, but man, it's compact and balanced just with the dot.
i much enjoy this thread, in any case. i know i need to scope my 5.56 upper to truly stretch its accuracy potential ...