There is a lot of good off the shelf quality AR's on the market. Some are better that others. Accuracy, in my opinion is mainly attributed to the barrel and trigger. You can make due with a crappy trigger but, a less than quality barrel will not allow you to achieve small groups. I reload for my AR but most of my plinking is done with standard cost effective ammo. I have found ammo from several different companies that are what I call grand kid MOA. They all love to shoot the AR and its nice to have off the shelf ammo that is fairly accurate but cost effective. Wold Gold is one of those grand kid MOA ammo that I have found. The 10 shot was 2.016". If you excluding the 3 flyers, the 7 shot group goes to .634". Not bad cost effective grand kid MOA ammo.
[URL=http://s782.photobucket.com/user/lynntelk/media/223%20Wolf%20Gold%2018in%20LaRue%20OBR.png.html]223 Wolf Gold[/url]