Remington Barrel Date Code FIREARMS INFORMATION Remington never (*) used serial numbers to identify the date of manufacture of it's firearms, they however stamped a date code (spelled out below) by the first letter meaning the month and the last letter the year of manufacture. BARREL DATE CODE - stamped exposed on LH top rear of barrel after 1920 the following will only be stamped where applicable #2 Part order barrel (not originally assembled to firearm) #3 Service section received #4 Return as received #5 Employee sale R.E.P. On the RH side of the barrel will be a Magnaflux, Remington proof & a test mark If a gun is returned to the factory as a fire damaged, or blown up firearm, the factory will stamp it as a prefix to their date code with a #4 on the barrel and return it un-repaired. Then if the gun is ever subsequently returned to a warranty center or the factory by ANYONE, they will refuse to work on it as an unsafe firearm. 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.

The factory says all barrels are date code stamped, well I have found some that are not, or if they are, are so erratic stamping that trying to decipher them is impossible. The photos below may help a bit.

Remington Model 740, Model 742 and Model 7400 Autoloading Rifles. Remington Model 740A Autoloading Rifle. 742 serial number sequence began at 1001 and ended at 396562. Serial numbers, shared with the Model Six pump-action rifle, started at A4000000. It was not offered in the.

Both were taken off Remington 760s, with the one on the left, a 30-06 that I bought new October 10, 1954. This has been rebored to a 35 Whelen Improved.

The one on the right again a 30-06, but with a shorter barrel that I made into a knock around quad rifle with pivot mounts. Here the R represents November, & the ZZ would be 1953. The fourth digit being a 3 is inconsequential being an assembly number.

There is no inspector mark on this side. Here the first (LH) mark is the final inspector mark, the O represents July, the R would be 1968. And the F again being an assembly number.

JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC B L A C K P O W D E R X 1920 = L 1930 = Y 1940 = J 1950 = WW 1921 = M 1931 = Z 1941 = K 1951 = XX 1922 = N 1932 = A 1942 = L 1952 = YY 1923 = P 1933 = B 1943 = MM 1953 = ZZ 1924 = R 1934 = C 1944 = NN 1954 = A (JAN.