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 yearof manufacture.

Remington 510 Serial Number

BARREL DATE CODE - stamped exposed on LH top rear of barrel after 1920

the following will only be stamped where applicable

The 478 is in the serial # location Rem stamped on the M/510 through 1941. Your date code might be LH. The L would mean February. The H would stand for 1939.
Remington Model 510 Targetmaster Rimfire. Rivet is for the Remington model 510-X Targetmaster bolt. Do not have a show room or location for the public. A Remington 22 rifle, model 510 SB, ‘Targetmaster’, no serial number, mo-skeet-o-bore smooth bore, single shot, bolt action. Ohio residents will be able to.

The 478 is in the serial # location Rem stamped on the M/510 through 1941. Your date code might be LH. The L would mean February. The H would stand for 1939.

#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. 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. AA)
1925 = S	1935 = D	1945 = PP	1955 = B
1926 = T	1936 = E	1946 = RR	1956 = C
1927 = V	1937 = F	1947 = SS	1957 = D
1928 = W	1938 = G	1948 = TT	1958 = E
1929 = X	1939 = H	1949 = UU	1959 = F

1960 = G	1970 = T	Dosprn 1.79 keygen. 1980 = A	1990 = K
1961 = H	1971 = U	1981 = B	1991 = L
1962 = J	1972 = W	1982 = C	1992 = M
1963 = K	1973 = X	1983 = D	1993 = N
1964 = L	1974 = Y	1984 = E	1994 = O
1965 = M	1975 = Z	1985 = F	1995 = P
1966 = N	1976 = I	1986 = G	1996 = Q

Remington Model 510 Serial Number