Scrap Metal

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burworf

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So is this Scrap Metal or any ideas ?

Cooey Model 39

Just bought it for the kids and took it out to the range for the first time shoots great but the bolt was really hard to cycle after firing. upon farther inspection it is bulging the casings out as seen in this photo.

11r6cz9.jpg


I can't see any damage with a visual inspection but i am assuming that somebody at some point has shoved a screwdriver or something in there and gouged the chamber ?

Any other Ideas?

Burworf
 
I'm no authority on these matters...but the word "scrap metal" does come to mind. It would likely take more than the tip of a screwdriver to cause such a deep gouge, I've never seen a bulged casing like that. I think your assumption is right though, there must be a void in the wall of the chamber. A gunsmith might have some ideas, but the conversation ALONE might cost more than the rifle. It's highly unlikely that the previous owner wasn't aware of this problem, that might be your only solution. Unfortunate way to find out you might have gotten a bit of a dud of a rifle.
 
Serious chamber damaged is indicated.
A smith could remove the barrel, set it back and rechamber, but
that is probably more costly than a M39 is worth.
I would put feelers out on the EE. Maybe someone has a spare barrel
kicking around. Easy enough to change out.
Eagleye.
 
If I had an old cooey liek that, i'd probably rent a .22 mag reamer and see if I could clean it up by rechambering. The old girl might not handle .22 Mag, but it might too. It's pretty much garbage as it is right now, so not much to lose other than the $25 reamer rental.
 
Guaranteed the previous owner knew because I had to put the butt of the rifle on the bench and tap the bolt to get the casing out after each shot. When it kept happening I started looking farther and noticed the casings.

But I bought it at a gun show and i don't even remember the guys name so that is no help.

Reaming it to .22 mag is interesting but I wonder if it will take the pressure.

Any thoughts

Budworm
 
Had another thought~have you removed the barreled action from the wood stock? Is the flaw a drilled (through) hole by any chance? Trying to think of reasons for such a deep gouge from the inside. Doesn't make sense. Whether it is/isn't a hole hardly matters, the fix isn't an easy/cheap one. Shame.
 
i dont think you could ream it to 22mag. for some reason i think they are slightly different bore sizes. You could line it with a 17hm2 liner but that would be worth about 2 or 3 new cooeys.
 
.22LRGUY said:
Had another thought~have you removed the barreled action from the wood stock? Is the flaw a drilled (through) hole by any chance? Trying to think of reasons for such a deep gouge from the inside. Doesn't make sense. Whether it is/isn't a hole hardly matters, the fix isn't an easy/cheap one. Shame.
Click to expand...

That was my first thought too. Probably a bad scope mounting job or a bad fix on a stripped mounting screw.

JB weld may fix the isue. It is only a 22LR.
 
I hate to say it but you could turn it in to that pix for pistols program and get a 250 dollar camera package then sell that and buy a few cooeys
 
Wouldn't be a huge effort to stick it in a lathe, ream out the chamber area and install a sleeve of hydraulic tubing or similar, then ream the chamber back to 22LR.

Maybe not feasible if paying someone else to do it. But were it mine, I'd set it in the project pile.

Suspect that it could be done without the lathe, and without too much drama, using a tubular liner in the bolt area to guide a machine reamer(45 degree cutting edge, as opposed to a hand reamer that has a long taper cutting edge) , powered by a hand held drill. Same drill could be used to turn the liner. Hold the section of tube in the drill and carefully file the matching taper to the reamer. Install with Acraglass, or a bearing retainer like some of the Loctite permanent products.

FWIW, I think that you could possibly even get away with rolled up paper as a guide. The hard shiny paper used in the more solid magazines would be a good pick, stuff like they use to print National Geographic or Playboy on, Heavy and not compressible. Just to keep the whole rig aligned.

Face off the breech end with a flat face counterbore, then chamber, and you'd be back in business.

Cheers
Trev
 
Is it a Cooey 39 or a Winchester/Cooey 39? If you get the barreled action with no bolt, your old bolt may not work. There were 2 different size grooves in the receiver where the bolt handle slides.
 
get a thick gauge needle and suck up some jbweld, then inject it into the hole in the rifle. wait for it to cure and get a dowel with 500grit sand paper to smooth it out. should be fine. it's only the case wall it has to support.
 
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