Cooey model 600 feeding issues and weak firing pin

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Huntin' Gun

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I have a cooey 600 with the tube magazine. Until recently it hasn't been fired in decades. I cleaned it up a bit and oiled it a bit. The very first round out of the magazine usually doesn't feed into the claw extractor. After that first one they usually do. But sometimes the round is held loose and doesn't line up with the chamber.
I replaced the extractor with a a "new" one and it is vastly improved but still not perfect.

Out of a string of 10 shots 2-3 won't fire because of a light strike with the pin. I sprayed degreaser into the bolt body but it didn't help much.

Any suggestions?
 
As far as I am concerned I suggest you sell it to someone who loves Cooey's and thinks they are worth a lot of money...and then buy a new rifle.

You will just have to experiment with 'adjusting' the extractor until it works most of the time. The misfire may be due to a weak spring, a short firing pin, internally dirty and or headspace. Someone will have to determine what and then fix it.
 
You might want to unscrew the striker and soak the bolt overnight in solvent. If the striker spring is week just order a new striker and save your self a whole lot of trouble the cooeys were not really designed to be fixed especialy pulling apart the strikers. Plus a lot of gunsmith might not be inclined to fix something that is worth less than the time they have to put into it just in case they get stuck with it.
 
guntech said:
As far as I am concerned I suggest you sell it to someone who loves Cooey's and thinks they are worth a lot of money...and then buy a new rifle.

You will just have to experiment with 'adjusting' the extractor until it works most of the time. The misfire may be due to a weak spring, a short firing pin, internally dirty and or headspace. Someone will have to determine what and then fix it.
Click to expand...

Found this to be a fairly common problem.

Put an EMPTY shell into the chamber and close the bolt.

Push ahead (forward) on the bolt handle and look for any play (space) where the back of the bolt handle and the frame meet.

If there is play, then that's probably your problem. You can check this by pushing the bolt handle forward while firing it. If there's no misfire than that's your problem.

Building up the back part of the bolt handle where it meets the frame "should" do the trick.

There's no guarantees with these guns.
 
I've had a couple of these, and once they wear a bit they do need some adjustment. The tube magazine and the attached feed mechanism slides with the bolt. There has to be a "how to" video out there. I just "adjusted" every and any thing that I thought could influence the operation. On several I made them work slick as can be, on several others, no joy. These were very popular, and lots saw some pretty hard use, in tractors, hanging in barns, garages, trunks of cars, under beds, in the porch, and more often than not, put away wet.

Oil can gum up or harden if it sits long enough. Perhaps a good dis-assembly and clean will let the firing pin do it's job.

Personally; I don't like them, especially if they've seen lots of use. Fortunately they have their followers, not hard to sell, 80 > 150 $ ball park. for fair to good. Pretty good advise on the sell to a collector and buy a new 22.
 
Thanks for the suggestions. I don't have a claw tool to remove the striker but I did soak the whole bolt in some solvent for a couple hours last night. I had it out today for a bit. It is quite snug when a shell is chambered. The bolt is not loose at all so I don't think headspace is the issue. The good news is that I didn't have a single feeding problem with the 150 rounds cycled. I was pleasantly surprised with that. The bad news is that it failed to fire occasionally. Still, it is a marked improvement. I think I'll soak it some more and for longer. Hopefully that further improves things.
 
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gunrunner100 said:
Not too many places I know of that carry new strikers or springs. I've made a new striker for a lazy bolt and firing pins are doable as well.
Click to expand...

Numrich carry them I ordered one last month search under Winchester, Cooey 60 they have them listed, Cooey 39 bolts are like rocking horse s%$# totally imposible to find.
 
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