For 9mm ammunition, you must use *modest pistol primers*. Here are a few distinct suggestions and things to consider: ### Primer Form - *Modest Pistol Primer*: This is actually the standard primer used for reloading 9mm ammo. Makes like CCI, Federal, Winchester, and Remington all make responsible modest pistol primers. https://winchestersmallpistolprim89567.ourcodeblog.com/31544237/consider-highly-regarded-brand-names-known-for-high-quality-and-reliability