For 9mm ammunition, it is best to use *smaller pistol primers*. Here are a few specific suggestions and concerns: ### Primer Variety - *Small Pistol Primer*: This is actually the conventional primer used for reloading 9mm ammo. Manufacturers like CCI, Federal, Winchester, and Remington all produce reputable compact pistol primers. https://winchesterprimersinstockf48324.alltdesign.com/contemplate-trustworthy-manufacturers-recognized-for-excellent-and-dependability-50976027