https://en.wikipedia.org/wiki/Remington_Model_721

The Model 721 and Model 722 along with the later Model 725 variant are bolt- action sporting rifles manufactured by Remington Arms from 1948 until 1961.

https://ingenieriareal.com/dating-remington-721/

Oct 28, 2018 ... Dating remington 721 - If you are a middle-aged woman looking to have a good ... View the flagship sporting rifles through the serial numbers.

https://www.gunvaluesboard.com/i-want-to-check-the-manufacturing-year-of-the-remington-721-sr89492-573445.html

If there is no barrel date code you would need to contact Remington Customer Service. As there are no publically accessible databases of these serial numbers.

https://www.rc-trucks.org/remington-firearms-serial-numbers.htm

Where to look for the serial numbers on Remington guns and how to decode them.

http://www.remingtonsociety.org/forums/viewtopic.php?t=410&start=60

Mar 30, 2007 ... The cover plate is marked 721. The bolt and barrel are marked serial number 100,000. Any input about this rifle would be appreciated. It shoots ...

https://www.remingtonsociety.org/forums/viewtopic.php?t=410

Dec 18, 2004 ... A table of actual rifles observed by Rem725 and other members of this group. Ranked by serial number. Let's find more Transition's and 725's!

https://www.remington.com/support/safety-center/safety-modification-program/remington-model-721-722

If you own a Remington Model 721 or 722 rifle: All Remington Model 721 and ... because of any number of factors, including wear, alteration or maintenance.

https://www.answers.com/Q/Date_of_manufacture_Remington_model_721_serial_number_31533

You can not date the gun by the serial number. There is a one or 2 digit code stamped on the left side of the barrel right next ti where it joins the reciever, That ...

https://www.shootersforum.com/rifles-rifle-cartridges/40562-remington-serial-numbers.html

Aug 29, 2007 ... I have a link and a document showing Marlin serial numbers and years they were produced. Does anyone know of a similar document for ...

https://forums.gunboards.com/showthread.php?168842-Anyone-know-much-about-the-Remington-Model-721

Apr 19, 2010 ... These early models also had their serial numbers located within the ... I bought a used remington 721 30-06 from badger john, not knowing ...