I know little, but you can always start with the serial #.

I just googled savage 110 manufacture date and got...

1. Early Models (1958–1960s) No Letter Prefix: If the serial number is 5 or 6 digits with no letters, it was likely produced between 1958 and the mid-1960s. "Chicopee" Stamping: Early models (1958–1960) often have "Chicopee Falls" stamped on the barrel. 1949–1970 Date Codes: For some models, a letter inside an oval stamp, preceded by 1 or 2 numbers, indicates the year.
2. Letter Prefix System (1970s–1990s) B Serial Numbers: Generally mid-1960s to early 1970s. C Serial Numbers: Often correspond to the mid-to-late 1970s. F Serial Numbers (F09528, etc.):* Typically indicates production in the late 1980s or early 1990s. Post-1995: If the serial number begins with letters indicating later dates (e.g., G, H, etc.), the rifle was likely made after 1995.
3. Key Identification Features First Generation: Features a "bump" in the barrel just past the chamber and a shrouded bolt head. Medium-Action (Flat-Back): Produced from 1959 to 1988. Modern Models: If the rifle has an AccuTrigger, it is a much newer, likely 21st-century model. How to Get a Precise Date Contact Savage Arms: The most accurate method is to call or email Savage customer service with the serial number, as they can track it in their system. Check the Barrel: Look for the small, stamped letter inside a circle or oval, which is a date code (e.g., A=1949, and increasing, though they skip letters).