Help! Whats the difference between 9MM & 9X19?

This is a discussion on Help! Whats the difference between 9MM & 9X19? within the MP Ammunition forums, part of the Smith & Wesson MP Forum category; I have always been a rifle shooter and not a pistol shooter. I have reloaded many rifle cartridges but few pistol. Can someone tell me ...


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Old July 21st, 2009, 06:49 AM   #1
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I have always been a rifle shooter and not a pistol shooter. I have reloaded many rifle cartridges but few pistol. Can someone tell me the difference between 9MM & 9X19 ammo? Are they compatible and do they use the same reloading dies?

Any help appreciated.
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Old July 21st, 2009, 06:55 AM   #2
 
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Originally Posted by RedPepper2' post='217780' date='Jul 21 2009, 02:49 PM
I have always been a rifle shooter and not a pistol shooter. I have reloaded many rifle cartridges but few pistol. Can someone tell me the difference between 9MM & 9X19 ammo? Are they compatible and do they use the same reloading dies?

Any help appreciated.


9mm Luger, 9mm Parabellum and 9x19 mm are all the same cartridge. Marketing and common usage in different countries confuses the issue.
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Old July 21st, 2009, 06:55 AM   #3
 
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Quote:
Originally Posted by RedPepper2' post='217780' date='Jul 21 2009, 09:49 AM
I have always been a rifle shooter and not a pistol shooter. I have reloaded many rifle cartridges but few pistol. Can someone tell me the difference between 9MM & 9X19 ammo? Are they compatible and do they use the same reloading dies?

Any help appreciated.
http://en.wikipedia.org/wiki/9_mm_caliber
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Old July 21st, 2009, 10:02 AM   #4
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Originally Posted by Austin12Gauge' post='217782' date='Jul 21 2009, 03:55 PM
Thanks for the replys. Now all I have to do is find a set of RCBS 9MM dies.
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Old July 21st, 2009, 11:54 AM   #5
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Thanks for the replys. Now all I have to do is find a set of RCBS 9MM dies.


In 9mm range of bullets you have the:

- 9x19 (usually .355" Diameter and between 115 and 147grain),

- 380Auto(9x17mm) which uses the same diameter but different length (usually more rounded nose) bullets at about 90-100grains. These could probably be loaded in a 9x19, but you shouldn't do it.

- 9x18 Makarov. These are the real danger I want to warn about, as they are .365" in diameter, just large enough to blow up your gun, assuming the bullet lets it chamber.



Also, the 9x18 can be made from 9x19 casings by trimming and fire-forming. It can be a cheaper alternative to the regular brass, so be cautious when sorting brass and luger casings that look funny or short.
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Old August 11th, 2009, 03:28 PM   #6
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Originally Posted by FieroCDSP' post='217803' date='Jul 21 2009, 07:54 PM
In 9mm range of bullets you have the:

- 9x19 (usually .355" Diameter and between 115 and 147grain),

- 380Auto(9x17mm) which uses the same diameter but different length (usually more rounded nose) bullets at about 90-100grains. These could probably be loaded in a 9x19, but you shouldn't do it.

- 9x18 Makarov. These are the real danger I want to warn about, as they are .365" in diameter, just large enough to blow up your gun, assuming the bullet lets it chamber.



Also, the 9x18 can be made from 9x19 casings by trimming and fire-forming. It can be a cheaper alternative to the regular brass, so be cautious when sorting brass and luger casings that look funny or short.
I found out that there are diffences in 9mm and 9X19. The primer pockets on the 9X19 were enlarged and the CCI primers would fall out. The Winchester 9mm brass I have excepted the CCI primers with proper fit. I guess we have to be aware to the fact some of this foreign brass is slightly different in size and primer pocket dimension.
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Old August 12th, 2009, 03:45 AM   #7
 
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9x19mm is just an effeminate way of saying 9mm Parabellum or 9mm NATO.



Just like calling 5.56mm as ".223" immediately shows your lack of experience.



-- Chuck
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Old August 14th, 2009, 08:59 PM   #8
 
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Originally Posted by RedPepper2' post='220477' date='Aug 11 2009, 11:28 PM
I found out that there are diffences in 9mm and 9X19. The primer pockets on the 9X19 were enlarged and the CCI primers would fall out. The Winchester 9mm brass I have excepted the CCI primers with proper fit. I guess we have to be aware to the fact some of this foreign brass is slightly different in size and primer pocket dimension.
There's two possible issues here, design and possibly excessively soft brass that results in an oversize primer pocket after one use. What brand of foreign ammunition? All foreign brass may not have the same primer pocket dimension, but that isn't a characteristic of 9 x19mm brass, it's a manufacturers quirk-possibly to require you to purchase their primers. At one time, Frankford Arsenal US Military ammunition used smaller than standard primers. If you're making military ammunition, this really isn't an issue since the military regards ammunition as a consumable supply item like rations and toilet paper.



BTW, in some countries reloading is illegal, which also may account for a different primer/primer pocket design.
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