I do not want to mention anything that I did not personally own, so a couple examples for you:
I have a box of Wolf sitting in the gun cabinet. It has poor accuracy and flies too low compared to milspec ammo. If you roll the cartridges, the noses on lots of bullets make circles and overall length of a lot differs by, umm, a lot, resulting in large differences in speed at which bullet enters the rifling.
My dad bougt a brand new s/a shotgun which jammed until the gunsmith filed off quite a bit of a lifter.
You in North America are in better position than people in Russia, because russian export had always had better QA than products for domestic markets. So you have no idea how atrocious is quality of Tula made firearms and ammo that we've been fed [up] with.
If you could read Russian, there are some horror stories about recent models of over/under where barrels cannot be lined up with stock adjustments and new brackets have to be manufactured.
Izhevsk is better in the end.