Many of these old trainers can be quite accurate. If the bore and crown are good I would not be surprised to see it out shoot many newer rifles.
About 8 years ago a whole bunch of Romanian Trainers were released in the US and I have shot two that were easily 1 MOA rifles or better. We mounted a scope on one (meant drilling holes for Weaver mount) and recrowned it and it was a very good shooting rifle shooting under 1/2" at 50 yards with out trouble. Turned out someone wanted it
twice as bad as my friend who bought it so it is gone now but doubling ones investment is not a bad thing