They can be decoded to find out when your shotgun or rifle was manufactured. Then, what year is my Remington serial number?Ĭheck the serial numbers located on the left side of the barrel on your Remington shotgun. Likewise, what year was my Remington 742 made? The Remington Model 742, also known as the Woodsmaster is a semi-automatic rifle that was produced by Remington Arms from 1960 until 1980. Remington Model 700 Serial Number Lookup: Remington Firearms manufactured after 1921 have a code located on the left side of the barrel near the frame that identifies the year and month of manufacture. Keeping this in consideration, what year is my Remington 700? Decoder is based on following information: Remington Year of Manufacture Codes maybe found on the barrel of your Remington rifle on the left side, just forward of the receiver the first letter of the Code is the month of manufacture, followed by one or two letters which are the year of manufacture.