For 9mm ammunition, you should use *small pistol primers*. Here are some specific recommendations and considerations:### Primer Type- *Small Pistol Primer*: This is the standard primer used for reloading 9mm ammo. Brands like CCI, Federal, Winchester, and Remington all produce reliable small pistol primers.### Variations- *Standard vs. Magnum*: -

Using a small rifle primer in pistol ammunition is generally not recommended. Here are some important points to consider:### Differences in Design1. *Primer Composition*: Small rifle primers typically have a harder cup than small pistol primers, designed to withstand higher pressures associated with rifle cartridges. This can lead to inconsistent i