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shooting 40 cal in a 9mm Glock magazine?

Discussion in 'General Glocking' started by crazeeman13, Oct 27, 2012.


  1. crazeeman13

    crazeeman13
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    I know it is a strange question but has anyone ever shot 40 cal out of a 9mm Glock mag and how did it function?
     

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  2. JBP55

    JBP55
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    Many malfunctions.
     

  3. SJ 40

    SJ 40
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    There are some differences in Glock 9mm and 40 S&W magazines.
    The main distinction between them is the distance of the feed lips.
    9 mm: .325-.335
    40 S&W: .360-.370
    I don't see it working well if at all.
    SJ 40
     
  4. MikeG36

    MikeG36
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    Not only what SJ 40 said but, doing so may mess up that mag for use with 9mm. Mags are cheap so why mess up a perfectly good one and then end up buying two mags instead of one? :dunno:

    $20-ish on line sometimes with free shipping. :wavey:
     
  5. barth

    barth
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    six barrels

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    I've shot about 1500 9mm rounds through my G27 with
    a Storm Lake 40-9mm barrel and G26 mags without a single problem.
    Shot 200 Winchester Ranger 124 NATO FMJ +P a few hours ago.

    But I have not tried, or have any interest in trying, 40 out of a 9mm mag.

    Recommend using the right mags.
     
    #5 barth, Oct 27, 2012
    Last edited: Oct 27, 2012
  6. JBP55

    JBP55
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    I have seen people load 9mm in .40 magazines on several occasions on the firing line and have malfunctions until an Instructor corrected the problem. YMMV!
     
  7. ADK_40GLKr

    ADK_40GLKr
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    1. Christian Studies

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    9mm in a .40 mag = Occasional malfunctions

    .40 in a 9mm mag = FREQUENT malfunctions

    (been there, tried that!)
     
  8. FFR Spyder GT

    FFR Spyder GT
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    Ex-Gunslinger

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    I have a LW 40-9 barrel for my G23 and I have fired several rounds of 9mm through .40cal mags but never .40cal in 9mm mags.
     
  9. jeep99011

    jeep99011
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    I have shot 50 rounds out of the 9mm magazines and they functioned fine. You can only fit 13 rounds of .40 in them and they bulge a little bit so inserting them into the grip makes for a tight fit.
     
  10. AustinTx

    AustinTx
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    That is a great benefit, to owning Glock pistols. The mags are almost/always, cheaper than their competition. Check H&K prices some time.
     
  11. ca survivor

    ca survivor
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    did long time ago, picked 17 mags while shooting a 22, it worked fine, the only thing I noticed it was hard to load the mags, didn't realize the mistake until I got home, now mags are mark....
     
    #11 ca survivor, Oct 29, 2012
    Last edited: Oct 29, 2012
  12. davsco

    davsco
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    well i guarantee that using g22/35 mags, loaded with .40, in a g17/34, does NOT work. don't ask me how i know...
     
  13. 1-2man

    1-2man
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    Part Time

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    Just two weekends ago I showed up at the range with my Glock 35 and only had 9mm mags. I shot 200 rounds through it without a single issue. :dunno: (I don't see doing it any time soon, nor intentionally, but it worked that day.)