For 9mm ammunition, you need to use *smaller pistol primers*. Here are some particular recommendations and concerns: ### Primer Kind - *Little Pistol Primer*: This is the standard primer useful for reloading 9mm ammo. Makes like CCI, Federal, Winchester, and Remington all make dependable little pistol primers. ### Variants - https://franciscofugtd.mybuzzblog.com/11009851/consider-trustworthy-brand-names-noted-for-high-quality-and-dependability