The 9×23mm Largo (9mm Largo, 9mm Bergmann–Bayard, 9mm Bayard Long) centerfire pistol cartridge was developed in 1901 for the Bergmann Mars pistol.

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  1. Roymil666

    +P+ in AR Pistol

    I picked up a box of Ranger defense +P+ 9mm for a really good price. Do you think a CMMG Banshee AR pistol 9mm could handle it? 8.5" barrel.
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