The Remington model 510 Target Master was made from 1939-1962.
current value of a 1941 Remington 510 22cal rifle
50-200 USD depending on condition.
I have a Model A-510 still working and it was purchased in 1981.
Your Remington model 510 Target Master will bring between 195-250 dollars in the condition that you describe.
the remington model 510 is a 22 plinking rifle used by adults and youth alike. they were not known to have been used by the military, but it's possible.
http://www.remingtonsociety.com (forums)
The Targetmaster is the Model 510, it may have 1922 patent dates on it but it was made from 1939-1962 and they made over a 1/2 million of them in five variations.
50-350 USD or so
Find the serial number and google the Remington sight. They should have records of when the weapon was produced.
They were made from 1939 until 1962. There is a 3 digit code on the left side of the barrel just in front of the receiver. The first two letters indicate the date of manufacture. You need to look at a barrel code list and match them up.
$50.00 to $250.00 depending on condition and exact model and originality