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Author Topic: Ammo for a CZ22? 9mmN  (Read 2502 times)

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Offline NeedCZ

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Ammo for a CZ22? 9mmN
« on: November 30, 2022, 10:36:20 AM »
Currently awaiting delivery of a CZ22 and am wondering what ammo would be an equivalent to 9mm N?
I'm not looking to make this a range gun, but would like to run a magazine or two through it. 
Is it just .380 like the '24's?
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Offline Wobbly

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Re: Ammo for a CZ22? 9mmN
« Reply #1 on: November 30, 2022, 10:44:28 AM »
Please define "9mmN".
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Offline NeedCZ

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Re: Ammo for a CZ22? 9mmN
« Reply #2 on: November 30, 2022, 11:17:18 AM »
That is what is stamped on the gun "9mmN".
I've read that it was "nearly identical to .380" (GunDigest book of CZ firearms) but am hoping that the experts here can weigh in.
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Offline Wobbly

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Re: Ammo for a CZ22? 9mmN
« Reply #3 on: November 30, 2022, 03:16:25 PM »
What we call "380Auto" in the USA goes by 5 or 6 different names in other parts of the world.

380 ACP, 9×17mm, 9mm Browning, 9mm Corto, 9mm Kurz, 9mm Short, and 9mm Browning Court, but I've never heard of "N". There is also a 9x18 called Makarov. You might want to measure the head space on your chamber to make sure you have a 17mm and not an 18 or 19mm.
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Offline rdcinhou

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Re: Ammo for a CZ22? 9mmN
« Reply #4 on: November 30, 2022, 06:57:39 PM »
Doing a search it appears that it is 9mm NATO.  I seem to recall that it was an original designation before being called 9mm Luger.

Some of what I found seemed to indicated that the older versions were a bit over-powered compared to later varients.

I'd do some serious drop-testing of different cartridges and cycling with snap-caps before even firing.
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Offline alp3367

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Re: Ammo for a CZ22? 9mmN
« Reply #5 on: November 30, 2022, 07:45:26 PM »
 I'd definitely headspace that thing and measure bore before deciding on ammo. Various iterations of those were 9mm Parabellum (also known as 9x19, 9mm NATO, etc.), .380 (known by many names as Wobbly points out) AND the experimental 9mm Nickl cartridge (named after the designer). To add to the confusion I believe all varieties of this pistol were marked N due to the designers name being Nickl.

 I'm no expert on the vz.22 but it sounds like nobody that is has chimed in yet. I'd proceed with caution.
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Offline Bret

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Re: Ammo for a CZ22? 9mmN
« Reply #6 on: December 03, 2022, 10:32:30 PM »
Quote from: rdcinhou on November 30, 2022, 06:57:39 PM
Doing a search it appears that it is 9mm NATO.  I seem to recall that it was an original designation before being called 9mm Luger.
This is incorrect.  Georg Luger designed the Luger pistol and 9mm Parabellum cartridge.  This led people to call the cartridge 9mm Luger after the pistol and the designer of the cartridge.  NATO was created long after Georg Luger died.

9mmN stands for 9mm Nickl.  But, the pistol might also be marked 9mmN and be chambered in 380ACP with N meaning cartridge.  Here are a couple of good links to read.
https://forum.cartridgecollectors.org/t/cz-model-1922-9mm-nickl/31044
https://unblinkingeye.com/Guns/VZ22/vz22.html

Whatever you do, definitely don't put a 9mm Luger (Parabellum, NATO, 9x19, etc.) in that pistol.
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Offline NeedCZ

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Re: Ammo for a CZ22? 9mmN
« Reply #7 on: December 04, 2022, 08:06:28 AM »
Thanks for the links, they were both great reads.
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Offline Bret

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Re: Ammo for a CZ22? 9mmN
« Reply #8 on: December 04, 2022, 11:24:24 AM »
No problem.  If you can figure it out, let us know what you pistol is chambered for.
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Offline armoredman

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Re: Ammo for a CZ22? 9mmN
« Reply #9 on: December 05, 2022, 11:39:46 PM »
And a pic of something unusual would be nice, too, if you don't mind? Nice find!
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Offline NeedCZ

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Re: Ammo for a CZ22? 9mmN
« Reply #10 on: December 07, 2022, 04:11:58 PM »
Picked it up today.  Definitely not 9mm luger, but it is some version of 9mm.
https://imgur.com/a/tLXep6K

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Offline Wobbly

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Re: Ammo for a CZ22? 9mmN
« Reply #11 on: December 07, 2022, 07:35:12 PM »
Time to inspect your chamber...

 ;D


As stated previously... among the suspects are 9x17 (aka 380Auto), 9x18 (aka Makarov), and 9x19 (aka Luger). I think we can safely rule out 9x21 and 9x23. Measuring from the "hood" of the breech to the step at the chamber end will give you the length of brass your chamber uses. (The "hood" is the protrusion on the top side of the breech.) The photos below show a P10c barrel which has a fairly beefy hood, but it works the same way.

Use the "depth probe" on your caliper to measure inside of your chamber...



Measure from the hood to the step at the end of the chamber...


That "depth" is the length of the brass the chamber accepts...


This is a P10c in 9x19mm, so the measured depth and the length of the brass case is 19mm...



Hope this helps.
« Last Edit: December 08, 2022, 07:37:24 AM by Wobbly »
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Offline Bret

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Re: Ammo for a CZ22? 9mmN
« Reply #12 on: December 07, 2022, 09:26:03 PM »
Quote from: Wobbly on December 07, 2022, 07:35:12 PM
9x18 (aka Makarov)
It can't be chambered in 9x18Mak.  The vz.22 was manufactured between 1920 and 1923.  The 9x18Mak cartridge was created after WWII.  This does bring something else to mind though.  The 9x18 Ultra cartridge might chamber, but it's certainly not correct either as it was developed in 1936. 
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Offline Wobbly

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Re: Ammo for a CZ22? 9mmN
« Reply #13 on: December 08, 2022, 07:41:39 AM »
Quote from: Bret on December 07, 2022, 09:26:03 PM
It can't be chambered in....


And the chamber could have been reamed for a new caliber at anytime in the last 50 years.

Let's just keep an open mind and do the measurement, before we start telling people what it can and can't be.
« Last Edit: December 08, 2022, 07:57:39 AM by Wobbly »
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Offline Bret

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Re: Ammo for a CZ22? 9mmN
« Reply #14 on: December 08, 2022, 10:10:58 AM »
9x18Mak would require a new barrel too as the bullet diameter is 0.008" greater than 9mm.  Anything is possible if we're talking about reaming and new barrels, but realistically I would expect one of the original chamberings.  Measuring should tell us.
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