PU scopes for Mosin

Not really, other than the fact that Kalinka has originals, though any new reproduction you get will have better quality optics:

http://kalinkaoptics.com/rifle-scopes/pu-original-wwii.html

I purchased two reproduction PU scopes and mount kits a few years back and didn't have any issues with them. The glass was clear and bright and they looked the part. recently aquired another kit for $250 and I'm cosidering putting it on my ex-PU 91/30 that has an excellent bore. STill need to get the turned down bolt handle to go along with it.

I have an Accumounts scope and mount, it's high quality. I like it.