For 9mm ammunition, you should use *smaller pistol primers*. Here are a few unique recommendations and factors: ### Primer Form - *Small Pistol Primer*: This is the normal primer employed for reloading 9mm ammo. Makes like CCI, Federal, Winchester, and Remington all deliver reliable small pistol primers. ### Variations - https://winchester-primers-europe51848.blogocial.com/consider-dependable-models-noted-for-good-quality-and-dependability-67370049