Just my opinion, and we all know what that is worth
, I think if given a fixed budget where you had the choice of upgrading the barrel or the trigger group of a 10/22, I would go with the trigger group every time. I really believe the stock trigger limits accuracy more then the stock barrel by a long shot.
That being said I have built two up with GM barrels and they are fantastic in the accuracy department but I have also replaced the trigger groups.
Chris