I took the AO M1 out for it's first range run today. I cleaned and lubed it before I went, the rifle was loaded with lots of oil from the factory. I cleaned all that out and lightly lubed it. The temp was 25 degrees. I fired a total of 50 rounds of Armscore 110g and the rifle did very well, every round chambered, fires and ejected well. Only problem I have is the rear sight need's a windage adjustment, it shoots slightly to the right at 50 yards. By looking at the rear sight it looks windage adjustable by tapping it in it's dovetail, is this correct? The owners manual says nothing about adjusting the rear sight...? I'm very happy with the rifle and it's performance. It seems very stiff and seems like it will need more break-in to get it functioning smoothly. I'm going back tomorrow weather permitting with another 100 rounds and try again.