Howdy.
Welcome to the forum.
The "C" prefix in the serial number indicates that it was made in the late 1980s and the date code "D J" narrows it down to being manufactured in September of 1989. Those barrel date codes can be found in the following link.
http://www.remingtonsociety.com/rsa/que ... arrelcodes
That caliber is one of my favorites.......I have two of them (both manufactured in the 1970s).
Den