I am constantly amazed at people wanting to shoot .22's at a 100 yards and who look for some sort of accuracy.
Certainly you can get it close but MAO at a true MOA distance (meaning 100 yard shots minimum) really isn't the focus of the .22 lr
Sure lots of people try, some people get it, and some people even say they have an MOA gun when they don't.
I've been shooting long enough and have enough training and education to know it's not the norm. The reason guys like Brandon Johnson win with an overall of .874 is because not many 22 LR's can do MOA.
There was a game (well still is) called BRV/BR-50 it's a 50 yard game open to rimfire and air rifles, interestingly the world record holder and a lot of the current winners are people that switched from rimfire to airguns.
I mean it's a neat thing to do if you are into it (build up a $260 gun to be something it isn't) but in the end after all the time and money is invested, you would have been better off with a 2013 or a FWB 2602 Super Match.
This is no knock to your ability to smith a gun, or the gun in questions, but like CLint Eastwood has said, "a mans got to know his limitations" of his gun.
An interesting "factoid" it's actually not the guns that are a problem but the bullet design. That "flat a$$" bullet with no defined point or tail is not the best when dealing with the yaw of repose and other forces related to exteral ballistics. As well the actuall cartridges are of issue as you can not really tailor a load (including bullet) to a gun. You have to go out and buy ammo, test it and then hope in subsequent batches it's exactly the same.
Certainly there are some very good choices for ammo...but they all suffer the same problem...they use a variation of the bullet that IS the problem.
That all being said, if you REALLY want accuracy out of a .22 rimfire, you throw the stock away and build it into a rail gun.