Ok so here is the story, I really want a functional .308 battle rifle. My first choice would be a Springfield M1A1 or a Springfield Scout Squad, however I don't have $2500 to drop on a gun at the moment. I've been eye balling the DPMS LR-308 Classic as a possible alternative but my question is this: Is the M1A1 significantly more accurate/reliable than the AR style DPMS? And is there some sort of scope that would allow me to use the iron sights and/or the scope on the DPMS? I'm looking to be able to reach up to 400 yards with this gun as I already have the carbine field covered. Any thoughts are appreciated.