For 9mm ammunition, you should use *compact pistol primers*. Below are a few certain tips and things to consider: ### Primer Kind - *Smaller Pistol Primer*: This is actually the typical primer used for reloading 9mm ammo. Manufacturers like CCI, Federal, Winchester, and Remington all deliver trustworthy smaller pistol primers. https://winchesterprimers02345.blogdanica.com/31331748/look-at-trustworthy-models-noted-for-quality-and-reliability