The .380 ACP is a type of 9mm... 9x17, and is sometime referred to as the 9mm Short or 9mm Kurz. It is NOT the same as the 9mm Luger/Parabellum (9x19), and it is NOT compatible with any other type of 9mm cartridge (such as the 9x19 Luger/Parabellum, 9x18 Makarov, 9x21, 9x23, 9x25, etc.).
No. The Largo round is longer.
The .380 ACP is 9x17, the 9mm Makarov is 9x18 (it should be noted the projectile for this round is actually 9.3 millimetres in diametre, as well), the 9mm Parabellum/Luger is 9x19. 9x21 is a commercial round intended for countries in which military calibres are prohibited for civilians to possess, and there are a few different 9x23 cartridges - 9x23 Winchester, which is fairly popular as an alternative to .38 Super for competitive shooting, 9x23 Steyr was a military cartridge which fell out of favour, and no current production firearms are manufactured for this cartridge. 9x25 Dillon is a 10mm casing necked down to a 9mm projectile, the 9x25 Mauser was a military cartridge which saw only limited service, and, like the 9x23 Steyr, no modern firearms are currently manufactured for this cartridge. Some also like to refer to the .357 Sig - which is a .40 S&W casing necked down to accept a 9mm projectile - as the 9x22, but this is in no way official, and it's typically referred to as .357 Sig, even in metric system countries. It should be noted that in the US, most of the time when someone refers to a 9mm, they're talking about the 9mm Luger (9x19mm Parabellum)
There are several types of 9mm cartridges. .380 ACP is the commercial designation in English/Imperial system countries for the 9x17 cartridge (also known as the 9mm Short, and 9mm Kurz). This is the only cartridge which is to be fired from a weapon chambered for it, and other 9mm rounds are notinterchangeable. This includes the 9x18 Makarov, 9x19 Parabellum, 9x23 Largo, etc..380 pistols typically use an unlocked breech, which can be done given the generally low chamber pressure produced by the .380/9x17 cartridge. Now, a 9mm Parabellum cartridge would probably not even chamber in a .380, but, if it did and was fired, the considerably higher chamber pressure produced by that round could destroy the gun and cause serious injury to the operator.
9mm Largo and 9mm Parabellum are different guns. No.
No. There are several different calibers that are called 9mm. These calibers are not interchangeable. A quick rundown of 9mm pistol cartridges: 9x17 also called 9mm Kurz, 9mm Short or .380 Auto 9x18 Makarov, also called 9mm Makarov 9x19 also called 9mm Luger, 9mm, 9mm Para, 9mm Parabellum 9x21 also called 9mm IMI 9x23 also called 9mm Long, 9mm Largo
There are several different types of 9mm cartridge. When Snoop Dogg or some other rapper talks about his "nine", they're referring to a weapon firing the 9x19 cartridge, also known as the 9mm Parabellum or 9mm Luger. Other 9mm cartridges in common use include the 9x17, which is also known as the .380 ACP, and the 9x17 Makarov cartridge, which is popular with military surplus collectors. There have been several other 9mm cartridges made, both past and present, to include the 9x23, 9x25, 9x39, etc.
No. Not all 9mm cartridges are the same. 9x19 (a.k.a., 9mm Luger, 9mm Parabellum), for example, is different, hence, not compatible with other 9mm cartridges, such as the 9x17 (a.k.a., .380 ACP), 9x18 Makarov, 9x21, 9x23 Mauser, etc.
No. The .380 cartridge is sometimes called 9mm Corto or 9mm Kurz, but in addition to a different cartridge shape, the basic design of the two pistols is generally different. MOST .380s are blowback, and 9mms are locked breech- due to the higher power of the 9mm Parabellum cartridge. Also, please understand that there are SEVERAL different 9mms- the 9mm Largo, 9mm Browning Long, 9mm Steyr, 9mm Makarov, 9mm Glisenti, 9mm Magnum etc, besides the 9mm Parabellum.
Thje proper name of the cartridge is 9mm Parabellum, It is also called 9mm Luger, and 9x19 (the size in millimeters) They are all the same cartridge, just called by different names.
yes................ Actually, it depends. There are several different case lengths that accept a 9mm bullet, so it depends on which particular cartridge you are referring to. For example, 9mm Kurtz is not the same 9mm para.
The common 9mm cartridge is known by many names. All of the following 9mm's are one and the same: 9x19mm, 9mm Nato, 9mm Luger, 9mm Parabellum. There are no 9mm cartridges specific to Glock or Smith & Wesson.