Why no high-cap .22s?

Discussion in 'Semi-Auto Handguns' started by lucznik, Mar 22, 2013.

  1. lucznik

    lucznik New Member

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    I was messing around with a couple of .22s tonight and I got to wondering... Why is it no one makes a high-cap .22 LR pistol? Everyone just limits it to 10 rounds. Even S&Ws M&P 22, which I'm told is supposed to be used as a tactical trainer, is limited to 10-round magazines. Why is this?

    High cap should be possible, after all, There have been high-cap mags for the Ruger 10/22 for decades.
     
  2. kaido

    kaido New Member

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    I'm pretty sure kel-tec has one. I'm not to sure what it's called though I want to say its the PMR30.
     

  3. JonM

    JonM Moderator

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    its hard to make the rimmed 22's function reliably in double column mags. all the ruger 10/22 mags that hold more than 10 are curved and single column.

    the pmr 30 has enough spring energy to forcefully strip a double column rim cartridge. such isnt the case for 22lr. if you increase spring strength to work it reliably the round wont have enough energy to cycle the slide.

    thats why there arent any past ten other than the few that use the 10/22 mags
     
  4. lucznik

    lucznik New Member

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    I had forgotten about the Kel-Tec. Thanks for the reminder.


    However, it's a .22 Mag, not Long Rifle.
     
  5. trip286

    trip286 New Member

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    Lookit da curve to dem hi cap .22 mags...
    Not real conducive to an ergonomic pistol grip...
    Kel Tec has made the PMR 30, which has been plagued by nothing but trouble so far, unless they've fixed it since the last I heard.
     
  6. kaido

    kaido New Member

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    I was thinking it was a .22Mag, but wasn't totally sure. Still on the cheaper side when compared to some centre fire pistol rounds though.
     
  7. lucznik

    lucznik New Member

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    Thanks. I appreciate the info. I didn't know that about the high-cap 10/22 mags. I thought they were double-stack deals.

    Learn something new every day.
     
  8. JonM

    JonM Moderator

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    not yet. the guns are still self dissassembling. the slides come apart. the magazines function just fine. they are extremely cheaply made. the sample i saw felt like it was going to fall apart if i gripped it too tight. shoddy materials hardly begins to describe the one i saw. gives bryco a run for the crappy gun award
     
  9. JonM

    JonM Moderator

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    there was a company that made really good double column 10/22 mags but they went out of business in the 80's. they had a 30 round mag that was only a few inches longer than a 10/22 10 rounder.

    still kicking myself for not buying 40 dozen of em.
     
  10. lucznik

    lucznik New Member

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    Perhaps but, is the curve an integral and necessary part of their design, or just a cosmetic feature to make them look cooler?

    For example,the mags on an AK are rather dramatically curved whereas those of an AR tend to be more strait, even when they are chambered for the same 7.62x39 cartridge.
     
  11. GrimReefer

    GrimReefer New Member

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    I own a sig saur 1911 22 and there is a couple of replacement parts you can get to get your standard factory mag to 14rnds
    ebay has them all over
     
  12. trip286

    trip286 New Member

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    The only AR mags I've seen for the 7.62X39 have just as much of a pronounced curve as AK mags. They're a bit straighter with the .223/5.56.

    Its an integral design feature. They have to fit the magazine to the round. The .223/5.56 doesn't taper as much between the base and the shoulder, therefore the curve isn't as pronounced. The 7.62X39 has a pretty pronounced taper, comparatively, from the base to the shoulder. Ergo, a more pronounced curve.

    Now, while .22LR and mag have no taper to their casings, its a rimmed cartridge. Meaning the base is still wider than the case mouth. Not so with most, if not all, ACP style handgun cartridges which use straight magazine boxes. But because it's so with .22's, they must use a curved mag too. And to top it off, the protruding case rim presents it's own lost of problems in the form of hangups, where rims get snagged on each other.

    How the hell kel tec made a mag that semi works, I'll never quite understand. But this is why you just don't see magazine fed weapons that use a rimmed cartridge very often. A lot of trouble to overcome.
     
  13. BeyondTheBox

    BeyondTheBox New Member

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    I've got a Mossberg AR type 22 with a 25 round mag, feeds perfectly and shoots like a dream. Love that little plinker
     
  14. AR10

    AR10 New Member

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    Calico made a pistol in 9mm and .22 that has 50 and 100 round mags. I own the 9mm version. It was also available to LE in full auto.

    You can get them on gunlist but the sellers are quite proud of them.

    Well made firearms, geared towards swat teams in 9mm and as a trainer in .22 LR.

    The mags can be fully loaded with zero pressure on the spring. When you wish to use the mag, charge the spring, takes a couple turns of a crank and about five seconds. Very ingenious design.

    If ever a zombie firearm was made, this is it.
     

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    Last edited: Mar 22, 2013