Even with heavy aftermarket modification most 10-22's (and most other rimfires, for that matter) seem to be considered "accurate" if they shoot a half inch at 25 yards or maybe under an inch at 50 yards. And, granted, that's no not nothinig and certainly decent hunting accuracy within the usual range of the round.
There isn't as much aftermarket support for the A-22 but I'm wondering if anyone has anything near 1 MOA accuracy with any version of the A-22.