Cooey 64B feed issue

C

CanukMauser

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My Cooey 64B seems to have a random failure to feed issue. Its been stripped, cleaned and oiled, I picked up a new magazine as well at the 2 vintage mags. The failure happens with all mags but its not consistent. Sometime it will runs the whole mag and the round count of the magazine is also inconsistent when it happens.

The round seems to stick and the bullet will usually be pretty chewed up after cycling the bolt.

Any advice?
 
I have 6 mags for my Sav-64 and only One has feed probs. It's the oldest (likely first/original) and the lips need to be fiddled occasionally as well as polishing the feed ramp of the mag. Also check the inside for dirt/cra-. No probs with other 5, 2 of which are almost as old.
 
The only thing I can think of would be the possibility that the mag latch may be worn/ bent/ broken,cracked... and not holding the mag high enough.?? The common fix is a new mag, but you have already tried that. Good luck with it......catnip (PS) try resting the mag on your hand while shooting (a bit of upward pressure on the mag ?) Just a random thought.
 
Might be a weak mag spring. Does this happen on or near the last round?
Load one round in the mag with black marker on the bullet, load and eject it.
See if it comes out with marker missing from the bottom of the bullet.
Might not be enough mag spring tension on the last round to seat the round properly on the bolt head.
Just a guess.
 
All three mags and inconsistent doesn’t sound like an exclusive mag issue. I would be inclined to check a combination of the feed ramp and variations in the ammo, damaged bullet shapes, misaligned bullets, things like that. Try different ammo, maybe something a bit hotter that will cycle with more authority. Does it ever FTF on the first round when you #### the action manually? Weak recoil spring? How is the ejection when it does cycle properly. All pieces of the puzzle when troubleshooting.
Good luck.
 
Someone on here years ago posted that these guns run best dry ( no lube). I have been using this method on my old Winchester/Cooey 64b and it seems to work. Add lube and the fail to feed starts almost right away. Btw, a 20 ga shotgun bore mop fits inside the action perfectly for cleaning it.

Jim
 
Lyallpeder has a point, I've found HPs often stick at the mouth of the chamber, plated or not. LRNs have no problem in my 64. I've used Fed HP-HV and Herters HP-HV and they both will often stick, sometimes bending the bullet too much to re-chamber properly. I've found Fed Auto-match HV cycles OK and as Workingman said I run the action pretty dry, just a dab of grease on the Sear. I've replaced the Sear spring with the MCarbo one and use a clik-pen spring on the trigger - it's lighter than the MCarbo T-spring, almost too light. I also polished everything inside w/ 1000g paper so now the trigger is around 2# or so.
 
Buck1950 said:
Lyallpeder has a point, I've found HPs often stick at the mouth of the chamber, plated or not. LRNs have no problem in my 64. I've used Fed HP-HV and Herters HP-HV and they both will often stick, sometimes bending the bullet too much to re-chamber properly. I've found Fed Auto-match HV cycles OK and as Workingman said I run the action pretty dry, just a dab of grease on the Sear. I've replaced the Sear spring with the MCarbo one and use a clik-pen spring on the trigger - it's lighter than the MCarbo T-spring, almost too light. I also polished everything inside w/ 1000g paper so now the trigger is around 2# or so.
Click to expand...

My cooey 60 like the copper plated better, the lead round nose will chamber, but sometimes the soft lead gets shaved by the edge of the chamber.
 
OP, there could be a number of things wrong with your rifle.

First, is the magazine well original to the rifle??

The original magazines were plastic.

The mag wells were proprietary to those magazines and it was difficult to make any other magazine work.

The original plastic magazines had problems with the lips breaking off and cracking. I still run across a few of those, that were relegated to closets because no one bothered to make replacement magazines out of metal or plastic, that would fit into those rifles.

After about ten years, Cooey/Winchester/Savage came out with a different magazine well, that only accepted proprietary POT METAL magazines, that were quite distinctive in their shape, which looked more like an old style skeleton Key and slot.

This new magazine/mag well design was adaptable, without much effort to the original rifles.

If the installation wasn't done properly, feeding issues were the norm.

Then there is the type of metal they used to sinter the pot metal to shape those magazines. It wasn't the best quality and wears very quickly.

Several different companies bought up the rights to manufacture the Model 64. They all did it on the cheap and none of their magazine issue fixes were really successful.

They're sleek looking, attractive rifles that are well balanced, accurate and a pleasure to plink, target shoot and hunt with, when they're functioning properly.

IMHO, with a different magazine system, they could easily have given the Ruger 10-22 a lot of competition on the ranges as well as in the gun shops.

My very first semi auto 22 rimfire was a lovely Cooey Model 64, in a nicely figured Walnut stock with pressed checkering and a rabbit on each side of the palm swells.

It was quite an innovative marvel at the time. They used plastic for the magazine, magazine well and trigger guard. The plastic 60 years ago wasn't nearly as advanced as it is today.

I saw a magazine that was made up on a 3D printer, to fit the original mag well of the 64. It worked well and was made from a slab of DELRIN

With GOOD, properly mounted, functioning magazines those rifles will feed any bullets, copper plated, lead round nose, hollow points.
 
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