FIREARMS INFORMATION
REMINGTON MANUFACTURING DATE CODE
stamped on LH top rear of barrel, 2 or 3 digit, (month first, year after) these will normally only be the last letters as seen below,
with the whole list shown here ONLY if it had been returned for repairs
The anchor shown here with the date code is just a symbol, as many different inspector marks will be seen
The above information was taken from Remington's own information sheet, so if your gun may not conform, then I am also at a loss in explaining.