.22 lr case rupture - Ruger Forum

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.22 lr case rupture

This is a discussion on .22 lr case rupture within the Ruger Single Action forums, part of the Pistol & Revolver Forum category; The GF was shooting the .22 lr single six I bought her today and started experiencing case ruptures. The cases were split lengthwise from mouth ...


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Old February 23rd, 2020, 08:13 PM   #1
 
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.22 lr case rupture

The GF was shooting the .22 lr single six I bought her today and started experiencing case ruptures. The cases were split lengthwise from mouth to rim. It seemed to be 1 or 2 rounds out of every six, and only happened about every 2nd or 3rd cylinder full i.e. not every single 6 round firing. I shot it and experienced the same issue probably about 10 cases out of 60+ rounds. As far as I could determine it wasn't the same cylinder hole every time, it jumped around The ammo was Remington Golden .22 lr, first time shooting that ammo in this gun or at all. It's a late 1970's Single Six, usually used with Armscor or Federal .22 lr's and has never had this issue before today, been used regularly for about 1.5 yrs probably to the tune of about 1000 rounds. Sadly we didn't have any other .22 ammo along to see if it was the gun or the ammo. Anyone ever had this issue before?



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Old February 23rd, 2020, 08:30 PM   #2
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You probably have the 22 Mag cylinder installed. With the 22 LR cylinder, I have never heard of cases rupturing or splitting. Until you get it figured out, DON'T shoot it any more …. a ruptured case could cause serious damage …. especially to your eyes.

BTW, try chambering a 22 Mag in your cylinder. If it fits, you have a mag cylinder. 22 Mag cartridges are too large to fit in a 22 LR cylinder.
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Old February 24th, 2020, 04:48 AM   #3
 
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I definitely do not have the .22 mag cylinder installed. When I bought the gun it didn't come with the .22 mag cylinder, the seller had lost it, and a .22 mag will not chamber i checked that before purchase. The only other Single Six it has been around is my own one, which is stainless with the magnum cylinder unfluted, this gun is blued, so I know they're not accidentally swapped either.

Last edited by Montana09; February 24th, 2020 at 05:06 AM.
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Old February 24th, 2020, 07:16 AM   #4
 
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Quality of 22 ammo may be to blame. I shoot a lot of Winchester and have found some really awful stuff as of late. Not that they are bad, but bad stuff happens. I've actually had bullets missing from the case and had a rim break off of one. But I chalk it up to the shortage and trying to catch up to demand. Quality suffered. Pic of box included.
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Old February 24th, 2020, 04:42 PM   #5
 
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Originally Posted by Quackaholic View Post
Quality of 22 ammo may be to blame. I shoot a lot of Winchester and have found some really awful stuff as of late. Not that they are bad, but bad stuff happens. I've actually had bullets missing from the case and had a rim break off of one. But I chalk it up to the shortage and trying to catch up to demand. Quality suffered. Pic of box included.
That's been going on with Winchester ammo for quite a while. I complained to them about their poor quality well over a year ago and I see things still haven't changed. I quit using the .22WMR ammo and switched to CCI. I am real cautious with regard to their center-fire stuff at this point also.
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Old February 24th, 2020, 05:54 PM   #6
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My first conclusion would be the same as you have heard. This is exactly what you see when firing .22 LR in a .22 mag cylinder.

I have fired many thousands of Golden Bullets. I have never seen this issue.

It's either a bad lot of ammo, or an over sized cylinder chamber.

I'd give it a thorough cleaning and inspection. Once clean, double check that a .22 mag won't fit. If you hadn't been shooting it successfully for so long, I'd suggest someone may have modified it.

Maybe if you post some pics of fired cases, we could be more helpful.
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Old February 24th, 2020, 05:54 PM   #7
 
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Originally Posted by Argee1950 View Post
That's been going on with Winchester ammo for quite a while. I complained to them about their poor quality well over a year ago and I see things still haven't changed. I quit using the .22WMR ammo and switched to CCI. I am real cautious with regard to their center-fire stuff at this point also.
I had to switch to CCI and Federal to get consistent ignition and consistent recoil to work the bolt on my Ruger 10/22. I had many MANY stovepipe jams with Remington and Winchester .22 LRs. I still occasionally get a stovepipe, but far fewer than with those two once-respected makes of ammunition. Federal 40-grain .22 LRs seem to work the bolt most consistently. CCI Mini-Mags are good, too.
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Old February 24th, 2020, 06:34 PM   #8
 
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I'm leaning more towards quality of ammo, I cleaned it and checked it, everything looks in spec and no it is not a .22 magnum. Speaking with some friends they've had issues with what they thought were double charges in Remington Goldens, one even had the grips crack on a Walther P22. Just some food for thought.
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Old February 24th, 2020, 06:58 PM   #9
 
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The OP stated the rounds were "split lengthwise from mouth to rim". How can that be caused by the ammo? I would think it's a cylinder problem! At least one of the chambers.
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Old February 25th, 2020, 05:52 AM   #10
 
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If it is truly the .22 cylinder and not the magnum, it almost has to be an oversized chamber issue. Even bad ammo would have a hard time splitting surrounded by a steel chamber if it’s not oversized.

As to the Armscor ammo, I use it in my .22 mag Henry rifle and my Single Six as well. Very accurate and reliable in my experience. I bought it quite by accident during the shortage when it was the only thing I could find. It didn’t take me long to buy two more cartons of ten though.
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Old February 25th, 2020, 07:23 AM   #11
 
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Not a revolver, but I have had a few split cases length wise maybe 3-4 over many thousands of rounds. These were with either CCI Mini Mags or Remington GB’s in my Walther PPK/S in .22lr (which is really picky about it’s diet). I’d give Ruger a call and see what they say.
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Old February 25th, 2020, 10:25 AM   #12
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Wildtoad, Walther PPK/s is a totally different animal. It is a pistol that is notorious for firing out of battery ….. no cylinder like a Single-Six.

I'm convinced the OP's cylinder is a 22 Mag and the reason why he can't insert 22 Mag cartridges is the chambers are badly fouled from shooting 22 LRs.
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Old February 25th, 2020, 01:19 PM   #13
 
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There's little that we can tell until OP does some trials. Different ammo. Mark the cylinders that rupture, see if there is consistency. Make sure the cartridge is fully seated - if the rim is protruding slightly (there's often about a rim's thickness of a gap on some older Single Sixes) then the case could be unsupported. If it doesn't do it with any other ammo, then try a different lot of the same GB ammo. I've got 3 Single Sixes and never had this issue, even when using 22LR in the 22WMR cylinder.
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Old February 25th, 2020, 01:55 PM   #14
 
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I tend to agree with Iowegan. After thouroghly cleaning the cylinder in question, see if 22 mag will fit. If not, ascertain which of the chambers are causing split cases. I really doubt a proper sized chamber will cause a spit case as described.

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Old February 25th, 2020, 02:23 PM   #15
 
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Quote:
Originally Posted by Iowegan View Post
Wildtoad, Walther PPK/s is a totally different animal. It is a pistol that is notorious for firing out of battery Ö.. no cylinder like a Single-Six.

I'm convinced the OP's cylinder is a 22 Mag and the reason why he can't insert 22 Mag cartridges is the chambers are badly fouled from shooting 22 LRs.
I agree a different animal, the point I was attempting to make is not to blame the ammo. Iíve had two out of battery firings blowing out the rim leading to bad results. The two case splits severely stuck fully seated.
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