For 9mm ammunition, you need to use *little pistol primers*. Here are several certain tips and things to consider: ### Primer Form - *Little Pistol Primer*: Here is the common primer utilized for reloading 9mm ammo. Brand names like CCI, Federal, Winchester, and Remington all deliver reputable small pistol primers. https://winchester-small-pistol-p24578.thenerdsblog.com/37066821/consider-trustworthy-makes-noted-for-high-quality-and-trustworthiness