Curious to see what grain bullets have worked for guys with AR10's that are .308's I get 1" groups so far with 165 Federal Fusion, and 1.5" Remington Power-shok hunting ammo. Trying to put together a good group together for some testing and want to find what bullet weights I should start with. I picked up a box of Hornady Tap 110grn from a friend, really curious to see how they fly!