For 9mm ammunition, it is best to use *small pistol primers*. Here are some certain recommendations and factors: ### Primer Sort - *Tiny Pistol Primer*: This is actually the regular primer used for reloading 9mm ammo. Brand names like CCI, Federal, Winchester, and Remington all make reputable smaller pistol primers. https://winchestersmallrifleprime57890.get-blogging.com/31931757/think-about-respected-models-known-for-high-quality-and-reliability