(repro) 91/30 PU sniper rifle initial sighting in and zeroing details ?

[vintage hunter]

First thing you need to do is remove the scope and mechanically center the reticle, otherwise you'll just be pi$$ing in the wind and will end up with an off center aiming post once zero'd.
Next go to mosinnagant.net and click on the sniper section and there you'll find a detailed ''how to'' article on zeroing the PU sniper.
Why do you say it's a repro? Sounds like the mount at least could be authentic, the arrow in a triangle is the Izhevsk arsenal mark. Can you post some good pics of the scope, mount and markings on the barrel shank?
I have a Century Arms clone built from a Finnish Tikka 91/30 I'm quite happy with but saw where Classic Firearms still has some refurbed originals for $550 USD. Tempting.