Caliber can not be determined by serial number.
smaller the number, the smaller the caliber.
It would be in 36 caliber or 44 caliber...
Virtually impossible to determine caliber by just the serial number.
The manufacturer is normally stamped on the firearm next to the model, caliber, and serial number.
the caliber is stamped on the gun.
It is generally impossible to tell the caliber/gauge of a firearm from just the serial number.
Impossible to know the caliber with only a serial number. It should be marked on the barrel.
No way to know the caliber from just the serial number
Serial numbers do not designate calibers. Look on the brrel to ID the caliber.
Can't tell the caliber from just the serial number.
By model, caliber and serial number.
Caliber should be on the barrel. SN's were not required until 1968