Half inch moa is pretty impressive, especially considering the bullet dia is that if you are not shooting sabots, and then it's pretty close to that.

My Remington 700 will consistantly shoot 1 inch over all groups, if I do my part. The rifle most likely shoots better than I do. If I don't measure the powder accurately from shot to shot, or pull a shot obviously things open up a bit. I also clean my barrel and let it cool between every shot. It's time consuming, but I want to be sure that first bullet out of a clean cool barrel will go where I want it to. I'm not worried about how it groups 3 shots later out of a dirty hot barrel. I don't intend on shooting that many times at a deer.

However it depends on how your measuring your groups. If you just shoot 3 or 4 shots into a group and measure them, then 1/2 inch groups would darn near be impossible, since the hole would be that big. You would have to put every shot thru the same hole. I think the correct way to measure groups however is to shoot several shoots, rule out the fartherst one (flyer), and then subtract the daimeter of a single bullet hole from the over all group diameter. So if you consistantly shot 1 inch groups and then subtracted the diameter of the hole, which would pretty much be .5 of an inch then you would be shooting half inch groups.

Paul