For 9mm ammunition, you must use *smaller pistol primers*. Below are a few specific tips and considerations: ### Primer Type - *Small Pistol Primer*: Here is the conventional primer useful for reloading 9mm ammo. Makes like CCI, Federal, Winchester, and Remington all develop reputable modest pistol primers. ### Variations - https://johnathanbpbnz.blogoxo.com/31535355/look-at-trustworthy-models-known-for-high-quality-and-reliability