For 9mm ammunition, you ought to use *small pistol primers*. Here are some specific recommendations and issues: ### Primer Form - *Tiny Pistol Primer*: Here is the typical primer employed for reloading 9mm ammo. Makes like CCI, Federal, Winchester, and Remington all make trustworthy tiny pistol primers. ### Variations - https://winchester-primers-for-sa68012.blogdanica.com/31367206/look-at-trustworthy-models-noted-for-quality-and-reliability