Makeshift "sleeve" for 22LR rounds in .22MAG chamber?


A strange person
July 18, 2011, 09:42 AM
I didn't know what category to post this under.

I heard of this trick where one takes a spent .22MAG case, cuts off the used primer (leaving an open-ended cylinder), and uses this as a sleeve to put in the chamber of a .22MAG weapon so that it can use .22LR ammo.

Has anyone ever tried this? Does it work?

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July 18, 2011, 09:48 AM
I'm not sure if a long rifle case will fit inside of a 22 mag case and if it does it is going to be stuck pretty good after being fired. so you need another mag case. I think I will pass on this one as not being worth the trouble

Jim Watson
July 18, 2011, 09:53 AM
Second hand.
A friend reported doing this with a Colt single action.
But I did not see it and he did not keep the gun long.

July 18, 2011, 09:57 AM
he did not keep the gun long.

Probably because there were brass "sleeves" jammed in the cylinder.:evil::D:neener:

Jim Watson
July 18, 2011, 10:19 AM
Well, he was the town repair gunsmith, I bet he got them out before he sold it.
He just wasn't a pistol type, preferring rifles and shotguns for his own use.

July 18, 2011, 10:23 AM
I have some steel sleeves here that were made just for the purpose of allowing you to shoot 22lr ammo in a WWMR. They were ment to be used in a revolver.


July 18, 2011, 01:51 PM
The distance between the center bore and the primer (rim) is smaller in the .22 LR than the .22 WMRF. Therefore, I'm not sure how any sleeve would simultaneously present the .22 LR rim to the hammer of a .22 WMRF revolver and center the bullet to the barrel bore (unless the hammer strike face was made vertically long, as is I suspect the case with Ruger .22 revolvers with interchangeable cylinders).

July 18, 2011, 01:58 PM
as is I suspect the case with Ruger .22 revolvers with interchangeable cylinders

But if you had interchangeable cylinders, then why not just put on the .22LR cylinder and not cobble up some frankenstein of a firing system?

As I do not have a .22Mag, it's not something I'm going to try any time soon.

July 18, 2011, 02:48 PM
What do you do with the sleeve? Just put it in the chamber and put the .22lr round in it? Wouldn't the .22lr case expand into the .22wmr case and get stuck?

July 18, 2011, 05:26 PM
This sounds like the kind of scheme dreamed up right after saying. "I wonder what would happen if..."

I'm sure the phrase, "Here, hold my beer" was used during its execution.

The last word was likely, "Well... I told you it wouldn't work."

July 18, 2011, 05:45 PM
It's an old trick. I've done it with revolvers. If a case should happen to stick (it's never happened to me) drag a bore snake through the cylinder and yank it out.

That said, you're on your own if you do it.

Someone will be along shortly to predict doom and gloom on the practice, but of the top 10 dumb things to do with a gun, this one doesn't even make the list...maybe not even the top 25.

July 18, 2011, 05:51 PM
The sleeves i have were made for this purpose, they are made from spring steel and work just fine. There were lot's of them sold long time ago... I used them in break open 22WMR and also a S&W M-48.

This is another case of the next generation comeing along and saying "it doesn't work", when it has been done for many years before them.


July 19, 2011, 06:18 AM
Has anyone ever tried this? Does it work?

Yes and yes. The only disclaimer being the firing pin hitting the rim of the cartridge as people have already pointed out. Accuracy may not be phenomenal because the twist of rifling isn't exactly optimal for lr but in most cases it'll work just fine.

I do that every now and then with my el-cheapo Norinco WMR bolt action. Feeding from the magazine is unreliable at best but feeding manually there are no problems as long as you choose your ammo carefully - the extractor claw is long enough to catch the rim of some cartridges despite it being smaller diameter than WMR. If not, you'll end up "extracting" with a cleaning rod.

A strange person
July 19, 2011, 09:39 AM
It just seems like it would be more practical than carrying a whole separate cylinder. At worst, I don't see how it could be dangerous to the gun or myself. Maybe it just won't fire or be accurate.

July 19, 2011, 07:41 PM
IT will work with the Spring steel inserts they sold back in the 1970's.

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