Can't be done with just the sn. Provide detailed description
No
It is generally impossible to tell the caliber/gauge of a firearm from just the serial number.
No way for us to tell from a serial number alone. Serial numbers are NOT unique to any one firearm.
Virtually impossible to determine caliber by just the serial number.
You will need the services of a good gunsmith.
Basically impossible to do with just the serial number.
1965.
20-120
Rifle or pistol?
Serial 16008
Sorry- no public data base.
1988.