For 9mm ammunition, you must use *smaller pistol primers*. Below are a few distinct recommendations and things to consider: ### Primer Sort - *Compact Pistol Primer*: This can be the normal primer useful for reloading 9mm ammo. Manufacturers like CCI, Federal, Winchester, and Remington all produce trusted little pistol primers. https://winchester200primersinsto79023.yomoblog.com/37806890/look-at-highly-regarded-makes-noted-for-quality-and-reliability