I had one of these toz 8m rifles (maybe not from canada ammo, it was a couple years ago). SOLID rifle, HEAVY long bull barrel. Mine was missing the rear sight spring and had been bubbad (drilled and tapped for scope bases right on the "made in USSR" stamp). I tried for abotu a year to get someone to sell me a 91/30 rear sight spring (same sights) but couldn't get one, so I traded it. Kinda mad at myself for that, because abotu 6 months later the 91/30 became available in the thousands as well as parts.
There rifles are in EXCELLENT condition generally. The guy I traded it to refused to believe that it wasn't refinished. Heavy, solid, straight shooting single shot .22LR rifles. They ARE NOT grooved for a scope. Fortunately, Nagant sights are just about the best sights for old eyes.