For 9mm ammunition, you'll want to use *tiny pistol primers*. Here are a few certain recommendations and things to consider: ### Primer Kind - *Smaller Pistol Primer*: This is the typical primer useful for reloading 9mm ammo. Makes like CCI, Federal, Winchester, and Remington all develop responsible tiny pistol primers. https://winchester-primers-in-sto05836.anchor-blog.com/11706211/take-into-consideration-reputable-manufacturers-known-for-quality-and-trustworthiness