I own other types of guns but never had a 9mm before.
Can you tell me the difference between Luger and Parabellum ammo?
What are the uses of each one?  Thanks

Two terms for the same exact thing. 9mm NATO, 9mm Luger, 9mm Parabellum...all the same thing

They are the same thing.  9mm Luger= 9mm Parabellum = 9X19 ammo.  All interchangeable.  Depends on where the ammo is from on the naming from what I have seen.  9mm Makarov is different as it is only 9X18.

9mm NATO is the same size, but loaded much hotter than standard loadings of commercial rounds.  Closer to a +P.

9mm NATO isn't much hotter than AE 124gr ball loads.  Negligible velocity difference.

Bullet weight and velocity do not change the name of a cartridge. 9x19mm, 9mm Luger, 9mm Parabellum, 9mm NATO are all the same exact cartridge with all of the various bullet weights, bullet styles, powder charges, internal case dimension variations all being normal for a widely mass produced cartridge.

One notable exception is the 9mm Italian Glisenti cartridge. It is a 9x19, but loaded weak specificly for the Glisenti pistol, and while identical in dimension to the 9mm para. is essentially considered a different cartridge...

1DD

Yes!  The high pressure versions of the 9x19mm cartridge might shorten the service life of your now century old Luger, but they won't blow it up.

Keep modern cartridges out of your Italian Glisenti, and to be on the safe side, keep those +p and +p+ loadings out of the older guns.

It is not a bad cartridge.  When you hear me refer to it as "Kaiser Wilhelm's" cartridge, I am just making fun.

Thanks for the info.
I can always count on you guys for the right help.