I have 2 Glenfield 20 bolt action rifles. I also have 2 Glenfield 25 bolt action rifles. (Not 25n) I thought the 20 was an older model than the 25. The last 20 I purchased had a later #, 1979, than both of the 25s 1975,1976. The older 20 has no #. The rifles are nearly identical. Most parts are interchangeable. Are they the same? Possibly sold through different chains. They are all good shooters. They take the same magazine. I also have 2 model 60, one with a bronze squirile medalion in the stock, 2005, and one older one with the full length tube magazine, no #. My first Marlin was a Model 100 G single shot.
I'm just trying to learn more about them.
I'm 60 years old and never owned a 22 untill I started buying some recently to shoot with my Grandsons. The old Marlin/Glenfield bolt actions seemed like a good choice. The last 10 years I have been shooting Thompson Center Muzzleloaders in competition. Before that all Govt. issue.
and this is too:
All Marlin Qwners:
Marlin year of manufacture maybe determined from the following list of letter/numeral prefixs to the serial number; this coding only applies to serialized rifles:
Starting in 1973, the year of manufacture maybe determined by subtracting the first two digits of the serial number from 100:
Example: SN 2512345 would have been made in 1975 [100 - 25 = 75].
For Marlin Rimfire Rifles [non-serialized]:
From 1962 thru 1968 Marlins rimfire rifles (other than the 39 series lever actions) used a two letter date code that was stamped on the barrel. This date code is different than the one already listed, as Marlin rimfire rifles (other than the model 39 series) did not have a serial numbers until required to by Law after 1968. The first letter of the date code represented the month of manufacture while the second letter indicated the year. This date code was usually stamped on the left side of the barrel just in front of the receiver. The first letter of the date code is as follows:
A = Jan.
B = Feb.
C = Mar.
D = Apr.
E = May
F = June
G = July
H = Aug.
I = Sep.
J = Oct.
K = Nov.
L = Dec.
The second letter of the date code is as follows:
F = 1962
G = 1963
H = 1964
I = 1965
J = 1966
K = 1967
L = 1968
So a date code of "JK" would indicate that rifle was made in October of 1967.
The above "codes" provided by RFC User "plinker Tom".
Here is an alternative Link: www.oldguns.net
Marlin owners: SAVE this table to your hard drive......
Team 60 member #37
So my glennfield 25 is a 1973 the first 2 digits are 27 but in front of the sn is jm stamped on the barrel