The model 721 was produced from 1948 to 1962
Not sure a serial list exists for this model but you can tell the month/year from the stamping. Details here: http://remingtonsociety.com/rsa/questions/barrelcodes
They are date stamped on the barrel, see related links for information on the Remington Society of America.
The Remington Model 721 in .300 H&H was manufactured in 1948 with a 24" or 26" barrel.
the 721 has a 3 letter code stamped on the left hand side of the barrel that indicates month and year of manufacture. http://www.remingtonsociety.com/rsa/questions/barrelcodes
Check the date code stamps on the barrel. Details on the Remington Society of America on the Manufactured Date link.
Check the date code stamped on the barrel, see related links for information on the Remington Society of America.
Check the date code on the Remington Society of America here: http://remingtonsociety.com/rsa/questions/barrelcodes
Check the date code stamped on the barrel. Look for the manufactured date link on the Remington Society of America for details.
Check the date code stamped on the barrel. Look for the manufactured date link on the Remington Society of America for details.
General information on the 721 can be found on the Remington website here: http://www.remington.com/library/history/firearm_models/centerfire/model_721.asp
Your Remington model 721 was produced from 1948-1962. If you can supply the 2,or 3 letter code on the barrel we can pinpoint the month and year of production.