Don't think I've ever had a group larger than .7" with this rifle, 5.56 RPR with a VX-3i 8.5-25 on it in a Nikon Black mount. Keep thinking about putting a better scope on it, but really don't want to take a chance on messing it up. Before I shot this group, it was already on my 'Do Not Sell!' list. And yea, this group is a fluke. I know I'll never duplicate it.
But it was witnessed, a buddy was watching thru a spotter. I looked back at him after the 4th shot, both of us fully expecting me to pull the 5th.
Oh, and this rifle started out FUBAR'd!! Bought it at my LGS, got it home and TRIED to remove the brake. Turned out to be cross-threaded from the factory, threads were beyond saving. LGS sent it in for me, Ruger re-barreled it. They sent it back with the brake in a baggie.
Works out to .0984 MOA, if my math is correct.
Another day, probably more realistic.
Maybe I'll try an 'MOA All Day' target with it this summer.