To find the caliber of an Interarms Mark X rifle with the serial number A304938, you can check the markings on the barrel or receiver, as the caliber is often stamped there. Additionally, you can refer to the owner's manual or any documentation that came with the rifle. If you don't have access to these, consider contacting Interarms directly or consulting a firearms expert or gunsmith for assistance.
Virtually impossible to determine caliber by just the serial number.
No published sn data
No published sn data.
100-300 USD or so
Caliber can not be determined by serial number.
Can't tell the caliber from just the serial number.
Serial numbers do not designate calibers. Look on the brrel to ID the caliber.
No way to know the caliber from just the serial number
The manufacturer is normally stamped on the firearm next to the model, caliber, and serial number.
No published SN data I know of.
No sn data in the public domain.