There are date codes stamped on the barrel. If you go to the Remington Society of America's page here it has a picture of where their location is and how to interpret the letters.
http://remingtonsociety.com/rsa/questions/barrelcodes
Impossible to answer without the sn.
Age.
You can tell the age from the date stamp on the barrel. Check the manufactured date page on the Remington Society of America to look up the details.
You can look on remington's website, but judging by the serial number it should have been made in 1980.
They are date code stamped on the barrel on left side in front of receiver. A barrel location diagram and the date code table (month/year) is available on the Remington Society of America.
You can tell the year by looking at the Manufactured Date information on the Remington Society of America - see related links.
see related links for chart and barrel code info.
See related links for information on barrel code dates.
You can tell the year by looking at the Manufactured Date information on the Remington Society of America - see related links.
the 243 was new in 1969 its 375.00 in 100%
All I can tell you is that it was introduced in 1909 and discontinued in 1936.
I have a Remington 22 long or short Rifle Model 514 pat# 214901322 ABO? What year was this made.