Info on 9x18mm makarov?

[Tyleroneal94]

My dad found these rounds in the safe. Not really sure where they came from. Wish other rounds would show up like these. From what I understand you can not run them through a modern 9mm. He is considering selling them if he has nothing to shoot them with. Thanks in advance

 

[MILSURP Collector]

Most 9mm are x19 these are for Makarovs and such.

https://en.wikipedia.org/wiki/9×18mm_Makarov

 

[rumrunner55]

9 mm Luger is 9x19
9mm makarov is 9x18
They do not interchange just FYI 9mm mak is a Soviet bloc round

 

[Jules Winnfield]

I’m interested in the ammo if he ends up wanting to sell it.