For 9mm ammunition, it is best to use *modest pistol primers*. Here are a few particular tips and things to consider:### Primer Sort- *Small Pistol Primer*: This can be the regular primer employed for reloading 9mm ammo. Brand names like CCI, Federal, Winchester, and Remington all deliver trustworthy compact pistol primers.### Versions- *Convention

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