Thanks for the responses. Makes me think it was probably put together with different parts.

Yes it is 2nd hand. It's from a deceased estate so no info from the original owner. Got it at a good price and seems to be in mint condition (borescope shows low round count on the barrel)

I sent an email to Savage about a week ago with the serial number to assist me with the identification but no response.

I would love to know the story behind this gun.

I'll give some updates if I find something.

Please share your thoughts if anyone has something to add or has a theory further explaining this.

Regards
Frans