Could be caused by a number of things. Keep in mind that the Glenfield (Marlin) 60 is a very robust and accurate firearm, although it is still prone to the usual maintanance issues. One possibility is bad ammunition. Try another brand. That said, the Glenfield 60 is pretty forgiving in regards to what ammo it uses and the cheap stuff is usually no problem, but occasionally you will come into a bad batch that just doesnt do a consistant job of cycling the action. Second possibility is that the action is just a bit dirty. Like most autoloaders, the Glenfield 60 can pick up a decent amount of crud and dirt, and given its rather forgiving nature, it can go just fine for a long time before the symptoms begin to show. remove the barrel and action from the stock (I am not going to describe how to do this, but it is a very easy rifle to disassemble, and there are step by step instructions all over the internet including on marlin's website) and give it a good cleaning and lube..... Again, find a good set of instructions on how to do this. Following these two suggestions, you will +95% likely have solved your problem.
My Glenfield Model 25 has a micro-groove barrel,so I imagine others do as well.
The serial number on a Glenfield model 20 is located on the left side right behind the barrel on the outside of the breech.
Occasionally can be found on eBay. Replacing the barrel on that model requires specialized tools, gauges and considerable gunsmthing ability.
a barrel ^response to answer = Isn't he referring to the slide on the side where the casings come out? I would think EVERYONE knows bullets come out the barrel. lol
The Glenfield 75c .22 long rifle is a fine rifle. simple, short, with a squirrel on the handle if you are lucky. they retail used in gun shops (2008) for around $100. I purchased mine in Oregon for $99. The shop had the Glenfield 75, with the longer barrel for $89. I prefer the shorter barrel of the model c, it feels really ballanced and is great for woodland hunting. -whooise
Mine says. short-long & long rifle, right on the barrel.
you first begin by standing the gun on it's butt compress the barrel downward and loosen then remove the nut on the magizine and remove the forarm you then remove the barrel by getting a firm grip on the barrel and pull it off you can then remove the frictoin rings and spring
Get a larger tip for your cleaning rod.
the Glenfield name used on the marlin rifle was for mass-merchandisers and chain stores that wanted brand name products to sell. this model you have was made by marlin from 1966-1970. marlin made two variations of this rifle, the change coming in 1969. it should have impressed checking on stock and forearm. As for the JM on the barrel, this is Marlin trade mark. 77,603 were built. these sold for around $100 when they were new. They are real nice rifles, I have a 30A 1st. variation that should look almost like yours except the magizine tube is full length. I wouldn't call it rare, its worth what ever you can get out of it. good solid rifles made by Marlin!
Open bolt, elevate barrel, pull trigger , catch bolt before it hits the ground
The Glenfield model 75C is a carbine variant of the Marlin model 60 produced for 1975 to 1992 by th m Mrlin Firearms Company under the name of Glenfield. Differences include shorter 18 inch barrel compared to the Marlin's 20. Length of pull on the Glenfield is shorter. The Glenfield also has a shorter and lower capacity magazine tube. The Glenfield hold 9 shots in the magazine, while current Marlins hold 15. Nearly all parts are interchangeable, and the Glenfield can be converted to modern full sized Marlin 60 specifications if desired.
On my model 20 its on the left side of the barrel directly up from the clip.