Have owned an Em332 for last couple of years and used it extensively on range and in field. It is a very well made rifle, comparable with european 22s and stock standard will outshoot pretty much any other standard 22 - if you are good enough.
Mine has shot 0.1" group at 55 yards and easily shoots under 0.5" with several ammos. It will also regularly shoot sub-MOA (under 1") at 110 yards with match and some hunting ammos. Has a best of 0.4" at 110yds and many 0.5" groups at that distance.
This is a precision little shooter and in hands of experienced club shooter with right ammo will give great performance.
Also own jw15 and although this also is very accurate - averaging round 0.6" at 55 yards with best of 0.4", it is not comparable to the Em. The Em is in a different engineering class altogether - far tighter and better action and feed.
Both however are bags of fun. Have owned and restored many rifles in recent years - marlin, winchester, rugers, henry etc but of all of them - surprisingly enough - the 2 norincos have been my keepers. I don't think I would ever sell the em - haven't found any standard 22 to match its precision shooting capability. Especially at norinco prices!
Note - many years of practice behind above figures!!