9mm is not .380 acp

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Uploaded by on Jan 13, 2010

Quick look at some differences between 9mm and .380 acp

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  • @SilverMoonAir 380 rattles around in a 9mm chamber because the sidewalls on a 9mm case are slightly thicker. Both the 9mm and 380 use .355in diameter bullet. Any .355in bullet in the 90-100gn weight range can be used in both 9mm and 380. Both can use the same bullets, but the cartridges are not interchangeable.

  • @Faris2A Other then in a worse case situation you should NOT attempt to fire 380 acp in a 9x18. 9x18 is a "east block" cartridge and east block cartridges are measured differently from "west block" cartridges like 380 or 9mm. This means 9x18 is a .362 in bullet and 380/9mm are .355 in bullet. This is an issue in it self causing serious accuracy issues, but it also means the cases are different diameters as well which could lead to serious chamber damage is a case fails.

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  • @Pushyhog bullet size is. Cartridge is different.

  • Well it's true, however the .380 acp is called the 9mm browning I believe it 9x17 and the real 9mm is 9x19

  • thats wierd, i have 9 mm b.c. and a 380 round and they are same in barrel..

  • @PiGood Thank you so much.

  • @Faris2A i wouldn't you may damage the chamber

  • @NCshooter1988 thanks for replaying, I know that 380 is a 9x17 in mm, but where I live 9x18 is so so expansive. I want to shoot 9x17 in my 9x18 Makarov instead of its original ammo.

  • @Faris2A no a 380 is a 9x17 in mm's

  • Can I shoot 380ACP in my 9x18 Makarov?

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