I didn't think you were calling me a liar at all, but just because you haven't seen it doesn't mean it hasn't happened
Shooting sub moa with a stock AR is not hard, and has nothing to do with being a gun god. As long as you practice, practice, practice and follow the six step process it is feasible, by quite a few and I am no gun god. I'm not saying that every time I hit the range that I can do it, but it’s not impossible and the rifle can only help YOU the shooter so much. I have days where I can put 10 shots sub moa, sometimes I have 3 different groups that are all sub moa. It’s all about how consistent the shooter is with their shots and that you’re doing the same thing time and again. It’s also about recognizing your mistakes and knowing why your groups opened up or shifted (did your NPOA move, were you not focusing on the front sight). Doesn't matter if it’s a match barrel, glass bedded, has NM sights...that means crap all if the shooter can't repeat the same motions consistently.
Like I mentioned earlier, most people will buy all the wiz bangs and gizmos for their rifle thinking that it makes it the best it can be. They then go shoot it and wonder why their groups are all over the place. They spent all this money, it should be flawless. It’s probably the shooter, as most rifles especially NM and SM can out shoot the shooter unless they have been practicing with that weapon for a very long time.
I'm not a high master in service rifle competition not even close, but have been lucky enough to get some coaching from a few that are pretty good at service rifle competition. It helped me quite a bit and I was surprised what I was able to do with irons on my stock AR. Now that I have my M14's I don't shoot my AR as much as the M14 is much harder to learn on as it’s not as forgiving.
For those that are wondering what MOA is, its minute of angle. At 100 yards 1 MOA is 1 inch, meaning that if your shooting sub moa all your shots are under 1 inch at 100 yards, 2 inches at 200 yards ect..