Is CZ 9mm chamber set to the Original 9mm military specification of 1908?

[wb3jma]

https://www.buffalobore.com/index.php?l=product_list&c=235

This is a article published by Buffalo Bore in 2018. He states that when they started moving the ogive when seating bullets so that it allowed enough space to add newer powders which allowed higher velocities at lower pressures for 9mm and 45 acp ammo including +P and +P+ that he ran into instances where Ruger, HK and CZ pistols are using original short chambers.

[Davehb]

We know CZ chambers are tight, which I think makes them more accurate, but much also had to do with bullet shape.

Check out the difference in some of European ammunition shapes compared to those in the US.

European 9mm ammunition seems to have more taper, which I guess may require a deeper seating to get the weight although S&B does make 150gr 9mm.
Whether it’s same as 1908 [emoji2373]
Sure someone more knowledgeable will chime in.

Sent from my iPhone using Tapatalk

[wb3jma]

Thats not quite what I was asking but I think I answered my question if I read correctly in another thread about it having short chamber.  Question is this just Buffalo Bore or could I reasonably expect the of any +p and +p+ ammo?

[SI VIS PACEM PARRABELLUM]

Thats not quite what I was asking but I think I answered my question if I read correctly in another thread about it having short chamber.  Question is this just Buffalo Bore or could I reasonably expect the of any +p and +p+ ammo?

No that's not exactly going to be the case. +p and +P+ refer to higher than standard pressure loadings and most commercially available ammo is going to be consistent in length. Take for example Hornady Critical defense, Critical Duty, and Critical Duty +P are all loaded to the same oal and I have had no issue running any of those in any of my CZ's. You should plunk test any new ammo before use and be sure it fits your chamber though.
If you are loading your own ammo refer to the stickies here on plunk testing and determining your oal for your particular pistol.

[Wobbly]

Thats not quite what I was asking but I think I answered my question if I read correctly in another thread about it having short chamber.  Question is this just Buffalo Bore or could I reasonably expect the of any +p and +p+ ammo?

I think you and Mr.Buffalo both are fairly-well off the mark.

First off, you make it sound like there is only one FMJ shape, but there are dozens. The CZ chamber is cut for FMJ because that's all you can legally buy in Europe. Then you get to the USA and we have flat nose round nose, conical, flat nose conical, FMJ and a couple of weird things seen only on YouTube that the Europeans never dreamed of. American chambers (like Ruger) are cut for these with generous freebore because they want to be able to shoot anything safely.

Please don't tell me these are the same shape, or that they will fit a chamber the same way


Please don't tell me all bullets "chamber push" to the same length

Then you make it sound like the length of the freebore is set by some fixed standard. SAAMI sets the voluntary standards for ammo and pistol chambers sold in the USA. If you look it up (HERE), there is no fixed dimension on freebore. Their only concern is headspacing.

What you need to know and be concerned about with your CZ is all covered in out Ammo & Handloading forum stickies. We have 2 sections; one for factory ammo and one for reloading ammo. Reading these will help you understand why no 2 barrels are alike and no 2 pieces of ammo are alike. When you multiply hundreds of ammo shapes by thousands of chamber shapes you get an almost limitless list of possibilities for "ammo fit".

There is no single standard for the world. That's the root issue here. But how can there be ? One standard can't cover precision "Olympic-grade" target pistols AND throw-into-the-mud military grade pistols.

Hope this helps.

[wb3jma]

Thats not quite what I was asking but I think I answered my question if I read correctly in another thread about it having short chamber.  Question is this just Buffalo Bore or could I reasonably expect the of any +p and +p+ ammo?

No that's not exactly going to be the case. +p and +P+ refer to higher than standard pressure loadings and most commercially available ammo is going to be consistent in length. Take for example Hornady Critical defense, Critical Duty, and Critical Duty +P are all loaded to the same oal and I have had no issue running any of those in any of my CZ's. You should plunk test any new ammo before use and be sure it fits your chamber though.
If you are loading your own ammo refer to the stickies here on plunk testing and determining your oal for your particular pistol.

Thank you came across the article by accident long after I had bought some +p Winchester Defender and was concerned I had done so without making sure I could shoot it.

[wb3jma]

Thats not quite what I was asking but I think I answered my question if I read correctly in another thread about it having short chamber.  Question is this just Buffalo Bore or could I reasonably expect the of any +p and +p+ ammo?

I think you and Mr.Buffalo both are fairly-well off the mark.

First off, you make it sound like there is only one FMJ shape, but there are dozens. The CZ chamber is cut for FMJ because that's all you can legally buy in Europe. Then you get to the USA and we have flat nose round nose, conical, flat nose conical, FMJ and a couple of weird things seen only on YouTube that the Europeans never dreamed of. American chambers (like Ruger) are cut for these with generous freebore because they want to be able to shoot anything safely.

Please don't tell me these are the same shape, or that they will fit a chamber the same way


Please don't tell me all bullets "chamber push" to the same length

Then you make it sound like the length of the freebore is set by some fixed standard. SAAMI sets the voluntary standards for ammo and pistol chambers sold in the USA. If you look it up (HERE), there is no fixed dimension on freebore. Their only concern is headspacing.

What you need to know and be concerned about with your CZ is all covered in out Ammo & Handloading forum stickies. We have 2 sections; one for factory ammo and one for reloading ammo. Reading these will help you understand why no 2 barrels are alike and no 2 pieces of ammo are alike. When you multiply hundreds of ammo shapes by thousands of chamber shapes you get an almost limitless list of possibilities for "ammo fit".

There is no single standard for the world. That's the root issue here. But how can there be ? One standard can't cover precision "Olympic-grade" target pistols AND throw-into-the-mud military grade pistols.

Hope this helps.

Thank you, aas not really interested in handloading just needed confirmation that in general +P was not going to be an issue so while informative was a bit more than I needed.

[Wobbly]

Thank you, was not really interested in handloading just needed confirmation that in general +P was not going to be an issue so while informative was a bit more than I needed.

That info is in the Stickies too.

The CFZ is a bit more organized than your run-of-the-mill gun forum.