You have not provided enough information. Remington used/uses a date code, which is different for various models. A lot of this information is available on the web, but not from Remington.
armscollectors.com Remington's are date code stamped from 1921 details on Remington Society of America.
The Remington model 722 rifles were made from 1948-1962.To get the exact year of production,Remington used a barrel date letter code which can be found just ahead of the receiver on the barrel.This will be a 2,or 3 letter code.Then go to Remington,s web site and find the letter code system and date your rifle to the correct year.I have 2 Remington model 722 rifles,one in 300Savage caliber and the other in .244 Rem.caliber and would not sell either one.They are wonderful and accurate rifles. See related links for the information on the Remington Society of America.
Remington Arms introduced this model in 1939 and discontinued production in 1963 with an approximate number of 381,267, units built. The codes AG would place the manufactured date to March of 1960.
1945
The U.S. Model 1917 Eddystone rifle was manufactured during World War I, with production occurring primarily between 1917 and 1918. Eddystone, a division of the Remington Arms Company, produced these rifles to meet the demand for infantry weapons. If you have a specific serial number, the production date can be narrowed down further using available reference materials.
The ones on the left side of the barrel by receiver are the date of manufacture code see related links for information on the Remington Society of America.
The C prefix dates your Remington model 700 to the year 1982.
Check the date code stamped on the barrel. Look for the manufactured date link on the Remington Society of America for details.
Check the barrel code stamps. The details are on the Remington Society of America on the Date of Manufacture link.
Since 1921 Remington has date stamped the barrel you can find the details/table on the Remington Society of America under the Manufactured Date link.
The date of manufacture for a Remington Model A can typically be determined by its serial number, as Remington used specific serial number ranges corresponding to production years. However, the Model A was produced from 1931 to 1935. To obtain an exact date, it's best to consult a Remington production guide or reach out to a firearms historian or collector familiar with the specifics of Remington's manufacturing records.
It's date code stamped on the barrel see related links for information on the Remington Society of America.