1961-1966 Cooey 84 12 gauge 30inch 3-inch chamber?

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Kylevan

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The title says most of it, wondering if anyone knows for sure if they came with 3-inch chamber. I have measured it two different ways and it appears to be 3-inch but am still hesitant because i've read and been told that they do not come with three inch chambers. I have dated it at mid sixties because it is stamped as an 84 but also has the winchester engraving on it. So from what I have found that put it's in the range listed above. Any thoughts or corrections on the info would be appreciated. Cheers
 
@mossyhorns shotgun chambers are 2-3/4 or 3 inch or 3-1/2. Measure a live round and they are less then each length. A 3knch shell does not measure 3inches until fires. @j_06 ya from both of those ways it appears to be three inch, as said I am just questioning it on the Cooey because I have been told that year doesn't come with it. Just triple checking before messing up a 55 year old gun.
 
I have an old Cooey 84 that I use for turkeys. The chamber length is not marked on it but I have a chamber gauge and it measures it at chambered for 3" shells. I don't know if they are all the same though.
 
Not sure how you guys are measuring the chamber but I checked Winchester/Cooey catalogs from 1968 through 1975 and it only shows the 16 gauge as having 2 3/4" chambers. In the 1968 catalog all models except for .410 showed 2 3/4" chambers. After that the .410, 20 and 12 gauge had 3" chambers but not the 16. Sure you aren't going into the forcing cone when measuring?
 
gunsaholic said:
Not sure how you guys are measuring the chamber but I checked Winchester/Cooey catalogs from 1968 through 1975 and it only shows the 16 gauge as having 2 3/4" chambers. In the 1968 catalog all models except for .410 showed 2 3/4" chambers. After that the .410, 20 and 12 gauge had 3" chambers but not the 16. Sure you aren't going into the forcing cone when measuring?
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I am after info on a 12 gauge not a 16 gauge (see title). Also the 1968 and later models are winchester 840's. My Cooey is an 84 with winchester engraving on it dating it pre 1968.
 
gunsaholic said:
My bad--don't know where I got 16 gauge from. Going by the catalog, your 12 gauge should be 2 3/4".
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Ya that's what I have been told but all tests / measurement come up as it being a 3-inch, that's where the confusion is. Thanks for checking the catalog though.
 
At one time I as very interested in Cooey 84/840 and Winchester 37 shotguns, and had several modified for use as survival or bear guns. Some had rifle sights, most had barrel band swivel studs, while others had Poly Chokes installed. I never saw any of these guns in 12 ga with anything but 3" chambers, and if the barrel is stamped 3" that tells you what you need to know. The 16 ga versions had a 23/4" chamber because there is no such thing as a 3" 16 ga, but 12's, 20's and .410s were all 3". The 1960's guns are easily identified with narrow forends, a flat spring forend retainer, better wood, rounded hammer spurs, and steel trigger guards.
 
Boomer said:
At one time I as very interested in Cooey 84/840 and Winchester 37 shotguns, and had several modified for use as survival or bear guns. Some had rifle sights, most had barrel band swivel studs, while others had Poly Chokes installed. I never saw any of these guns in 12 ga with anything but 3" chambers, and if the barrel is stamped 3" that tells you what you need to know. The 16 ga versions had a 23/4" chamber because there is no such thing as a 3" 16 ga, but 12's, 20's and .410s were all 3". The 1960's guns are easily identified with narrow forends, a flat spring forend retainer, better wood, rounded hammer spurs, and steel trigger guards.
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Awesome thanks a lot for the info. Sounds like you have a lot of experience rather then just opinions! And yes my gun matches your 60s description. Now I can feel good pulling the hammer on 3 inch loads.
 
Boomer said:
At one time I as very interested in Cooey 84/840 and Winchester 37 shotguns, and had several modified for use as survival or bear guns. Some had rifle sights, most had barrel band swivel studs, while others had Poly Chokes installed. I never saw any of these guns in 12 ga with anything but 3" chambers, and if the barrel is stamped 3" that tells you what you need to know. The 16 ga versions had a 23/4" chamber because there is no such thing as a 3" 16 ga, but 12's, 20's and .410s were all 3". The 1960's guns are easily identified with narrow forends, a flat spring forend retainer, better wood, rounded hammer spurs, and steel trigger guards.
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I'm not sure if you are saying all 84's, and 840's had 3 inch chambers or if you are referring to the guns after Winchester took over. The original Cooey 84's had 2 3/4" chambers and I just remeasured mine to verify. I also just rechecked the information in the catalogs regarding the Winchester/Cooey 840 and it states and I quote " Available in all gauges with full choke barrel only, .410 gauges chambered for 3" shotshells. 12, 20 and 16 and 28 gauges chambered for 2 3/4" shotshells."
This quote is from the 1968 Winchester/Cooey catalog. In the 1969 catalog 3 inch chambers were available. So do not assume your gun has 3 inch chambers without measuring. In this case if you have measured your chamber properly and it says 3", then likely that is what your gun is which would indicate it is after 1968. Of course later guns that are clearly marked on the barrel takes the guess work out of it.
 
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@gunsaholic My post was not at all in reference to your posting. More of just a general appreciation that it appeared to be more than just an opinion. As far as the reference from 1968, it appears from other reading that I have done that they had been changed to 840s post 67 and mine is for sure an 84. I have measured it with a tool at local gun store and comes up as 3 inch, made a custom tool to measure and that comes up with three inch as well and have also done the simple test of putting a fired 3inch shell into the chamber and it slides in no issue. I was more just going above and beyond to be certain as to what I had with this post. Also just like to find out any information on my new gun. Once again appreciate everyone's input on the subject. Thanks
 
It was actually 68 the 840 came out and all were 3" chambers in 12ga, 20ga and 410 but the 84's stopped in late 67 and I have never seen one of those 3" other than 410 Some say they did make a few but again never ever seen one and think BS other than it was modified and not by the factory and some were.
There was also a few mod chokes but hens teeth IMO. I seen one over the years and had my hands on a ton of these
Catalog IMO maybe 68 but I think they were talking 840's since one could difinately get a 3" 840 in 68 but I didnot think you could buy a 68 produced 84
Measure to be 100% sure as gunsaholic says. not that it matters but I still have a complete set of 84's and a few 840's in the odd ball stuiff like 28ga
Just my 2 cents
Cheers
 
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Ok thanks for the pennies. Well as for my measurements they all come up 3 inch. So I guess all that is left is to pulls the trigger on a 3 inch and see.
 
Kylevan said:
@gunsaholic My post was not at all in reference to your posting. More of just a general appreciation that it appeared to be more than just an opinion. As far as the reference from 1968, it appears from other reading that I have done that they had been changed to 840s post 67 and mine is for sure an 84. I have measured it with a tool at local gun store and comes up as 3 inch, made a custom tool to measure and that comes up with three inch as well and have also done the simple test of putting a fired 3inch shell into the chamber and it slides in no issue. I was more just going above and beyond to be certain as to what I had with this post. Also just like to find out any information on my new gun. Once again appreciate everyone's input on the subject. Thanks
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Your dropping a fired shell in it proves nothing it probaly has the folds into the tapered forcing cone which makes the exit diameter too small. This can make the chamber pressure rise to dangerous levels. The right tool I would believe and I would make triple sure being an 84 since they didnot come 3" based on anything I have ever read or seen and have seen a lot of these but again maybe someone had it reworked who knows
Cheers
 
In John Belton's book he states the 840 came out in 1967. So if he is accurate, and if the 1968 catalog is accurate, it would imply that the first 2 years of 840 production had 2 3/4" chambers. The 68 catalog is talking 840. There is no mention of the model 84 in it.
 
gunsaholic said:
In John Belton's book he states the 840 came out in 1967. So if he is accurate, and if the 1968 catalog is accurate, it would imply that the first 2 years of 840 production had 2 3/4" chambers. The 68 catalog is talking 840. There is no mention of the model 84 in it.
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Seriously my friend who really knows what they did with the cooeys. They have to be one of the worst shotguns ever made with respect to accurate record keeping
All I know is I have never seen a model 84 3" 12ga factory but have seen 68 840's 3" factory , quite a few of them if this old memory is right :)
Old man had lots of both in his shop during those years and I kind of remember the hype when the 3" came out. Mind you when in 68 I have no clue other than before August 17th since my brother got one for his birthday that year
Cheers
 
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3macs1 said:
Your dropping a fired shell in it proves nothing it probaly has the folds into the tapered forcing cone which makes the exit diameter too small. This can make the chamber pressure rise to dangerous levels. The right tool I would believe and I would make triple sure being an 84 since they didnot come 3" based on anything I have ever read or seen and have seen a lot of these but again maybe someone had it reworked who knows
Cheers
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Ok ya never trusted the shell dropping, that was the first test. Then measured it with a chamber tool at gun shop. Then also made a tool so I could compare my two know 3 inch barrels to the Cooey barrel and they were the same. As well as measuring the homemade tool and it coming up as 3 inch. I just looked at the gun again and 100% is an 84. Only stamp on the barrel is "Proof tested 12 gauge full choke" on the top of the barrel.
 
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