For 9mm ammunition, you should use *little pistol primers*. Here are a few specific suggestions and things to consider: ### Primer Form - *Smaller Pistol Primer*: This is the standard primer used for reloading 9mm ammo. Brand names like CCI, Federal, Winchester, and Remington all create reliable smaller pistol primers. https://winchester-41-small-rifle50524.blog-mall.com/31948577/contemplate-trustworthy-manufacturers-recognized-for-excellent-and-trustworthiness