Metric to Caliber conversions

[natedog]

Ok, .380ACP is 9x17, 9mm Makarov is 9x18, 9mm Parabellum is 9x19. So what is .357 Magnum, like 9x28? Or .38 Special?

 

[Zundfolge]

Go here: http://web4.integraonline.com/~bbroadside/General_Info.html

 

[Marko Kloos]

.357 Magnum is 9x33R.

.38 Special is 9x29R.

.44 Magnum is 10.97x33R.

 

[New_comer]

"R" I suppose means "Rimmed"?

 

[Jim K]

The designations given by Lendsringer would be technically correct, but I have never seen them used by anyone in Europe or any metric use area. Cartridges like .357 Magnum or .38 Special are called by those names since those are the original and correct designations.

I have never seen or heard of the .380 ACP being called the "9x17", always the 9mm Short or 9mm Browning Short/Kurz/Corto, etc. The 9x19 is rarely called that, usually it is known as the 9mm Parabellum. The same is true of the Makarov, which is called (surprise!) the 9mm Makarov. The other 9x18 is usually called the 9mm Police or 9mm Supra.

.22 Long Rifle is usually called just that, except that the term Long Rifle is often translated (.22 Lang fur Buchsen or LfB in Germany, for example). Military rifle rounds are more often called by the "x" designation, but are also called by other names, .30-'06 or .303 British being used much more than 7.62x63 or 7.7x56R.

Military designations often differ, though. The cartridge called the 8x57JS by civilians was always called the 7.9 by the German military and the 9mm Parabellum was called the Patrone '08.

Jim