For 9mm ammunition, you should use *compact pistol primers*. Below are a few precise recommendations and considerations:### Primer Form- *Tiny Pistol Primer*: Here is the common primer used for reloading 9mm ammo. Manufacturers like CCI, Federal, Winchester, and Remington all produce trusted little pistol primers.### Versions- *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