early 80's
80's or so
No "code" involved. You just have to find a source for SAKO serial numbers.
No way to answer since serial number was not provided.
You will have to contact Sako. Falls outside published data.
Impossible to a answer without a model designation
Great rifle.
No published sn data.
Unfortunately, the current owner of SAKO (Beretta) does not publish date of manufacture tables for NEW Sako rifles. Try contacting Beretta Customer Support through their website.
Proof mark
Sako, and Remington are two different manufacturers.
Pretty much impossible to so with just the sn.
Impossible to answer without a detailed description of all markings.