Probably a serial number
You will need to provide more details about what numbers are located where. Is it a shotgun, pump, bolt action rifle or lever action rifle. On the upper tang, the metal just behind the hammer, what is imprinted on the metal? What exactly is stamped on the barrel and where? If there a number on the lower tang or the bottom of the receiver?
Sounds like you have one of the Swedish "Mausers". Year of manufacture should be engraved in the crown.
Requires professional appraisl. Could be 100-10000 USD
read the information engraved on top or side of barrel
you are only suposed to shoot magnums in semi because in long rifle they jam regularly and require tacking the gun apart and unjaming it.
BA
No published sn data that I know of.
I have a Stevens Visible Loading .22, adn the serial number is on the underside of the rifle, on the extended metal that goes from the trigger guard into the stock. It's quite visible. Ed
The serial number on a Remington Model 12 .22 caliber pump-action rifle is typically located on the underside of the receiver, just in front of the trigger guard. It may also be found on the left side of the receiver, near the rear. If you're having difficulty locating it, ensure the rifle is unloaded and examine the area closely for any stamped or engraved numbers.
A Marlin Glenfield Model 60 .22 caliber semi auto rifle with a squirrel engraved in the stock and a serial number 20160178 is worth between $100 and $300. The actual value varies greatly based on its overall condition.
Metal
The serial number on a Glenfield Model 30 can typically be found on the right side of the receiver, near the loading port. It is usually stamped or engraved into the metal surface. Additionally, the serial number may also be located on the barrel of the rifle, typically near the chamber. It is important to note that the exact location of the serial number can vary slightly depending on the specific production year and model of the firearm.