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Discussion Starter · #1 ·
This gets asked a lot, never occurred to me to just take pictures.

The 'check'

Take a normal sized, old fashioned pencil and drop it down the bore. If its fairly tight, its 30 Luger (aka 7.65mm Luger)



- if it falls easily and there is plenty of room, its 9mm!!
 

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Another thing you can do is take a loaded 9mm cartridge and try to slip in into the barrel at the muzzle. If it will almost go in it's a 9mm and if it won't hardly go in it's a 7.65.




Jim
 
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A regular sized cigarette(or filter) is a perfect fit in a .30 cal. barrel.
Tim H.
 

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I been trying to use the one Tim suggested, but I keep burning my fingers. Does the lit end go in the barrel?
Pat
 

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Good one Pat
 

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This gets asked a lot, never occurred to me to just take pictures.

The 'check'
View attachment 205881
Take a normal sized, old fashioned pencil and drop it down the bore. If its fairly tight, its 30 Luger (aka 7.65mm Luger)

View attachment 205889

- if it falls easily and there is plenty of room, its 9mm!!
View attachment 205897
Thanks, Edward! I’m brand new both in this forum and as a Luger owner (just got my first one today). Looks like mine is 7.65. What Ammo would you recommend? Thanks so much!
 

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Discussion Starter · #10 ·
Usually most are pretty good, I did find that Only PPU would make my carbine function.
pictures of your thirty cal please
 
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