For 9mm ammunition, it is best to use *smaller pistol primers*. Here are a few distinct recommendations and concerns: ### Primer Style - *Small Pistol Primer*: This can be the typical primer useful for reloading 9mm ammo. Makes like CCI, Federal, Winchester, and Remington all generate reputable compact pistol primers. https://winchester-primers-german04851.blogofchange.com/31968181/consider-dependable-models-noted-for-good-quality-and-dependability