Accuracy in 22 cal dedicated uppers

[mutt]

You won't get match accuracy out a .22lr AR upper. They aren't made for that. However you should be able to get a consistent grouping vs a pattern. Can you get consistent 1" 10 shot groups at 25 yards? If so your upper is performing as it should. If not, check to make sure your barrel is not loose and verify your crown isn't damaged. My dedicated .22lr upper can ring 4 inch plates pretty consistently at 100 yards but it's not going to print match winning groups at that range. These are plinkers and training aids, not precision uppers. You could try and turn it into a tack driver but you're going to invest a lot of time and money probably better spent elsewhere.

[DocMedic]

You won't get match accuracy out a .22lr AR upper.

Wut? I seem to remember my nordic 20" dedicated upper doing 1 inch at 100 with eley ammo, for Sportsman team challenge. Only reason I got rid of it is it wouldn't always feed 100%

[mutt]

Wut? I seem to remember my nordic 20" dedicated upper doing 1 inch at 100 with eley ammo, for Sportsman team challenge. Only reason I got rid of it is it wouldn't always feed 100%

I'm sure there are .22lr uppers that can achieve match grade accuracy out of the box, just like I am sure there were yugos (the car) back in the day that would make it to 100K miles without needing a single repair. However as a general rule it doesn't happen. If I remember right Nordic made some higher end barrels/uppers and they were probably priced accordingly. Eley ammo isn't exactly bulk ammo either.

I think the OP's expectation that a mass produced CMMG .22lr conversion upper will outperform his Marlin is a bit optimistic unless he's willing to invest more time and money than it's worth. Can you get one from the factory that is very accurate? Sure. One can always win the lottery when it comes to manufacturing variances, just don't count on it.