michbob - thanks for the clarifications, I 'ppreciates it. For my part, I am kind of glad Beretta doesn't chamber it's autos in the 9mm mak cartridge, it's too close to the size of the 380 not to allow for mistakes to happen. In addition, I really don't see any functional advantage to the 9mm mak over the 380. Yes, you can purchase inexpensive milsurp 9mm mak rounds for less than American factory fodder but what you get is milsurp 9mm mak ammo. With 380s, S&B makes a very nice round that they sell rather inexpensively.
I have an older Beretta Model 70S that chokes up on dirty Russian/ComBloc 380 ammo, but just ticks right away on the S&B, US studd and handloads. Just my 2 cents worth here. Mikey.