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Discussion Starter · #1 ·
Question. Why aren't there 22 wmr made in semi-auto? I've heard that the Kel Tec PMR-30 has suspended production because of key-holing. AMT & Excel Arms Accelerator Pistol have one but are they still made? I'm just wondering why Glock, Taurus, Ruger, S&W, etc. are not making a 22 mag. auto? Thanks, Bernie
 

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Hey, in case I missed you, welcome aboard!
And this is a good question - maybe I've heard arguments as to why this isn't done, but I've slept since then... and I'm old.

But seriously, a .22 Mag revolver has always been a good option for a CC/BUG role, and a good hollow point round would seem to be about as effective as some .380 ACP pistols out there. Anyone? Bueller??
 
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Discussion Starter · #3 ·
Jack rabbits in SE New Mexico go 6 to 10 pounds and a lot of shots exceed 70 yards. My old Savage 22wmr rifle is good to 150 yards and has more knock down power than my 22lr pistol or rifle. Also, for a car gun (self-defense) Or am I just trying to find an excuse to convince my wife that I really, really need to buy another gun?
 

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Jack rabbits in SE New Mexico go 6 to 10 pounds and a lot of shots exceed 70 yards. My old Savage 22wmr rifle is good to 150 yards and has more knock down power than my 22lr pistol or rifle. Also, for a car gun (self-defense) Or am I just trying to find an excuse to convince my wife that I really, really need to buy another gun?


That's always an underlying factor when wanting a new firearm! :)

I like your question. For some reason I have an interest in .22wmr. A semi-auto, in pistol and rifle?, would be very tempting.
 

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Funny thing: I don't even own any .22 caliber firearms! The smallest caliber I own is 9mm.
I would like to own something in .22 caliber some day; & I would really to get a .22 mag.
A semi-auto with .22 mag would really be nice! :)
 

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A new member in our club brought in a used Excel in .22 WMR last week. It's a gorgeous piece of work that had nice lines, fluted barrel, shiny SS. He took it out and had several fte and ftf issues. He left with it stating that he is going back to the dealer and possibly Excel for resolution. I hope he gets her running right because I want to shoot it, bad!
 

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Ruger did make a short run of 10/22 rifles in .22 WMR about 10 years ago. Mitchell's Mausers currently make a .22 WMR semi-auto rifle.
 

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Hey, in case I missed you, welcome aboard!
And this is a good question - maybe I've heard arguments as to why this isn't done, but I've slept since then... and I'm old.

But seriously, a .22 Mag revolver has always been a good option for a CC/BUG role, and a good hollow point round would seem to be about as effective as some .380 ACP pistols out there. Anyone? Bueller??
I agree. I've always thought a .22 Mag could make an excellent CC weapon.
 

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Why aren't there 22 mags made in semi-auto?

:r_c: It all comes down to $$$$$$.

If there were enough of a demand, there would be more offered.
 

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I've heard that the Kel Tec PMR-30 has suspended production because of key-holing.
Really? Dang. I kinda wanted one of those. Better to wait till they solve the problem, though. Hope they resume making them.
 

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Way it was explained to me is combined with the low relative power of a 22 mag and the longer case the trick is getting them to cycle in such a way the case doesn't stick, you have to get it just right... and they tend to have feeding issues on top of that being a long rimfire. Combined with a difference in brands in 22 mag it's just really hard to make a 22 mag work in semi auto.
 

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Way it was explained to me is combined with the low relative power of a 22 mag and the longer case the trick is getting them to cycle in such a way the case doesn't stick, you have to get it just right... and they tend to have feeding issues on top of that being a long rimfire. Combined with a difference in brands in 22 mag it's just really hard to make a 22 mag work in semi auto.
OK, I seem to recommember something along those lines, now. Case length seemed to be the primary issue.
 

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Magnum Research makes .22 WMR semi-auto rifles based on the Ruger 10/22 design, but with a gas assist to the blowback design. They are pricey, but probably worth it.
MRI Shop / Firearms

CZ supposedly makes their CZ512 in .22 WMR rifle too, but I haven't seen one in person.
CZ-USA -> CZ 512
 

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Volquartsen makes their 10/22 clones in 22 WMR but first you have to find one (1.5year lead time) and then you have to pay for it! ($1200+)
 

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Discussion Starter · #15 ·
For the Kel Tec PMR-30 on gunbroker.com they are asking as much as $1600. At budsgunshop.com when they had them they were $312. So it sounds like due to short supply there are some that are price gouging. I just question some posts that say there is no demand, I would buy one for around $350 but not $600 to $1000.
 

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Over the years several companies have put 22 mag semi autos on the market in both handguns and rifles. Almost all are a blow back design. That means the weight of the bolt and spring resistance has to hold the bolt closed long enough for the round to fire, pressure drop from peak pressure to a reasonable pressure. Then open the bolt, extract, eject the case cock the action and reload another round in the chamber. In a perfect world all Ammo would run the same pressure and the pressure peak would follow a pressure curve. We do not have that with bullet weight running from 30 to 50 grains and where each ammo spikes on the curve being different. As an example the 17 hmr and 22 mag have the same basic case because the 17 is a necked down version. This is done a lot with centerfires. Using a gas operated system is standard with centerfires. The bullet passes a hole in the barrel gas is bled into the gas system where the gas pressure operates the action. This design works with a wider pressure range reliably. It also operates with Ammo that is running much higher pressure than rimfires run. The problems with blow back are multiple. The bolt opening too soon blows cases and usually rips the extractor off the bolt. Actions tuned for the rounds that spike the quickest will not cycle ammo that spikes slower and they may both reach the same pressure. When the 17 hm-2 came out it ran the same chamber pressure as the 22 long rifle. Logic said any action that would handle the long rifle would work with it. Yet the pressure spike for it was just that, an instant spike that would open actions so fast the chamber pressures blew case heads and did all kind of other things. Weight was added to bolts, heaver springs used and companies gave up on it. The 17 hmr and 22 mag share many of these problems, with the 22 mag it takes a little longer fot some problems to show up. The Ruger 10/22 mag developes action problems, things crack and break. I am not a semi auto fan but own and shoot a few. It is possible to fine tune the 22 mag and 17's to run in semi autos. It usually requires tuning to one brand of ammo with one weight bullet. Companies are in business to make a profit with as few problems as possible. The companies that make them now usually give a list of what their gun runs with.
 
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