October 1947.
The targetmaster was manufactured from 1936-1939 everything after 1920 has the date code stamped on the barrel. The details for this can be found on the Remington Society of America here: http://remingtonsociety.com/rsa/questions/barrelcodes
Remington made 306,880 model 41 Target master rifles from 1936-1939. See related links for information on the Remington Society of America for the date code information stamped on the barrel (month/year)
It's date stamped, check the manufacture date page on the Remington Society of America for details.
1930, will be date code stamped see related links.
1928, it's date code stamped on the barrel, see related links for information on the Remington Society of America.
1924 it's date code stamped. See related links to information on the Remington Society of America's website for details.
They were only made from 1932-1935, they are date code stamped on the barrel details on the Remington Society of America, Manufactured date link.
They were only made from 1932-1935, they are date code stamped on barrel. See related links for information on the Remington Society of America.
The Remington Model 41 was made from 1936-1939, they will have the date code stamped on the left side of the barrel. You can look up this code at the Remington Society of America, I will add a related link to this answer with it.
late 1933 it's date code stamped. See related links to information on the Remington Society of America's website for details.
The 141's are date code stamped on the barrel, the location diagram and date codes are on the Remington Society of America.
Made in 1927, will be date code stamped on barrel see related link.