Re: .308 AR type
well if you have not bought one yet i will toss in my experience
I have owned over 5 DPMS 308s, I still own one
they all shot great including this one shoots about .5 with factory match ammo
I own a FAL and have owned 8 of them I have have owned FNAR, M14,all shoot well. I did use the SR25 at SOTIC and Campbell at the Locker but was mildly impressed for the cost.
after all and said if I had the money, which I am saving up for,(Army paycheck) I would only buy 1 Semi auto 308 for accuracy and reliability it would be a POF, the 2 I have used shot under .5 and functioned perfectly, other rifle would be the SCAR Heavy but its not available yet to Civilians but in the SOF world its a hit.
i carried a M14 in Iraq and loved it, also carried one in Sniper School at Benning for Stalking, but accuracy is not equal to a POF or DPMS 308 with out lots of work and $$$
My picks are
#1 Scar heavy
#2 POF 20 inch
#3 DPMS 24 inch
#4 M14
#5 FAL
#6 FNAR
I own all of them or have used them so I can say this from experience.
here are some of my 308 semi Autos