Why 9mm and 7 65 Parabellum magazines are interchangeable
This video explains why 9mm Luger and 7.65x21mm Parabellum magazines are interchangeable. Both cartridges share the same overall length and case head dimensions, with the primary difference being the necked-down bullet in the 7.65mm. This dimensional similarity allows manufacturers to use identical magazines for pistols chambered in either caliber, simplifying production.











