I have an AR-10T used to have 2 but sold the carbine version. I was completely happy with both of them they were very reliable I used a lot surplus ammo in my carbine mostly south african and australian, and never had any sort of failure. In my target version I only use 175gr match ammo or hunting ammo with decent ammo i get 3/4 moa groups from a rest and I have pushed it out to 900m with no problem I have to say out of all the rifles I have my AR10T is definatly my favorite