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Discussion Starter #1 (Edited)
Not sure if this would be best in this forum or the "single action" one but here it is.

First I'm not very familiar with .22lr anything. My gf got a Ruger Bearcat and we took it to the range but we were barely able to put about 18 rounds through it before we gave up trying to load it anymore due to concerns about safety. This Bearcat was BRAND NEW never been fired before.

The ammo we were trying to use is the Winchester M22 (pictured below)


The problem is the ammo didn't seem to want to fit. I mean it would eventually fit but most only after my knuckles turned white straining to push them into the cylinder. Others would go in okay without much fuss and they all fired fine once in. As you can see from the pic I pulled out 6 random rounds and was only able to get one in a chamber. All the rest would go in if I wrestled with them but that just doesn't seem right. I even showed what was going on to the range master who happens to be a gunsmith and he was just baffled.

Is there any known issues with the Bearcat and this specific ammo?
 

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Have you tried other brands?
That should tell you if the problem is erratic tolerances in the ammunition or out of spec cylinder chambers.
Denis
 

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Did you try any other brand of ammo? Bearcats and Single-Sixes tend to be chambered pretty precisely.

I've never used anything but Federal or CCI in my Bearcats. I did try some Winchester Wildcat in a Single-Six, with trouble like yours. The cases were enough out of round, the cartridge wouldn't chamber past the bullet. Other brands did fine in that gun.
 

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Discussion Starter #6
I had not tried cleaning the cylinder before firing it. As I said it was brand new and appeared to be very clean.

Have not tried other brands. Just wanted to see if anyone else with a Bearcat has had issues with this particular brand.

I will get some CCI's and see how they work but kinda sucks to be stuck with this giant box of Winchester...wish I had known before hand they were incompatible.
 

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Well, you have made me wonder, I was going to buy a box to try in my SR22-CT, did you buy those at wally world?
 

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Sorry to resurrect an old thread, but I just experienced this exact same phenomenon this weekend. On a whim I did a google search for “Winchester M-22 not chamber” just now and – Lo and Behold! – My favorite forum came up in the search results! :)

Situation was the same: Relatively new stainless Bearcat. Perfectly clean cylinders. The gun feeds and shoots everything else incredibly well. But…… Winchester M-22s get stuck hopelessly tight, exactly like the OP’s photo shows.

In my experience probably two or three out of out of every six cartridges stick; and they stick in any/all of the chambers. In other words, the sticking is specific to those particular cartridges, and not any particular chamber(s). The cartridges that do fit in all the way will then shoot very accurately and extract well. The cartridges that refused to fit would chamber and shoot fine in my son’s Savage Rascal bolt action.

I bought a brick of 500 of these, so I’ll probably spend some time in front of the TV putting them in the cylinder and sorting them into “fits” and “ain’t gonna fit” piles. I’ll feed the ones that fit to the Bearcat, and the other (over-sized?) ones to the Savage.

I just thought this was a really interesting situation and wanted to post it to corroborate the OP’s story. Looks to me like it’s a quality control issue at Winchester, rather than a Ruger problem.
 

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I went yesterday with a friend who just purchased a brand new Ruger Single Six ... and a brick of M22 ammo at Gander Mountain.

He was just as excited about purchasing 22lr ammo as he was his new weapon.

He had the same experience. The M22 round DID NOT FIT in his Cylinder. We tried other brands of ammo we had in our range bags. CCI mini mags, CCI standards, Aguila Super Extra, even some old Peters I had rolling around in my bag.

Everything fit and fired.

I'm thinking that a batch of M22's went out with cut-down mag brass. The bullet fit in the cylinder ... but the brass won't fit ... even when we oiled the chambers.
 

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Yes, only mine is with a new Ruger single six and the M22. See my posts... I think it's the ammo. At high side of tolerance on diameter and perhaps more that usual bulge on the case where it crimps onto the bullet. I looked at some rounds under a wide field microscope and I think I can see the bulge.
 

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The most inconsistent .22 ammo I have tried so far. I bought the 2,000 round box from Dick's and have found that a third of the M22 rounds were oversized. If a round doesn't drop in easily, don't push it.
 

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Can you return the ammo to the dealer? To Winchester?

I thought only Remington made ammo this bad. I use CCI, but my .22's are a MK II autopistol and a Marlin rifle.

In general, I do not like .22 revolvers. I had a S&W M-34 that had severe extraction problems. I sold it and swore no more .22 revolvers.
 

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Tried a couple of other different brands of 22 ammo and they seem to work fine. So far it's only the Winchester M22
Don't worry about this. I cannot chamber any Winchester 22LR ammo in my Ruger Single Ten.
Just as with your Bearcat, the bullets Winchester uses are slightly too large to fit.
My Single Ten works with CCI, Federal, Aquila, and Fiocchi ammo.
 

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I had not tried cleaning the cylinder before firing it. As I said it was brand new and appeared to be very clean.
Good reason to go over & clean/inspect your new pistols before shooting. You've, literally, run into one of them. On my Single-Sixes, the chambers are a little tight when there are a few shots down the bore (50). Would recommend a good clean/polish.
 

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I bought two boxes of 500 M22 bullets. I quickly found out that these .22lr bullets are over sized and would not fit into the chamber of three of my .22 rifles. I was going to throw them away but decided to check each bullet (almost). I think I only found 10 bullets that would fit into my chambers. I have Federal, cci, Aquilla and Remingtons and they fall into the chamber will no resistance. I emailed Winchester and they replied that they wanted to see them. They sent UPS to my house and picked the bullets up. So far (4 days) I have not heard from them but there is no doubt that these bullets were not made to specs. I have been shooting .22 bullets for 50 years and never had this problem with any other ammo.
 
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