9 mm ammo and 9mm Luger are literally the identical calibers. It’s simple to get confused about this though considering the fact that many ammunition makers use one or the other title. The place there is a change in 9mm caliber ammo is with 9mm NATO and 9mm +P https://hornady-custom-180gr-202386284.isblog.net/top-guidelines-of-bulk-9mm-39207065