Using a small rifle primer in pistol ammunition is mostly not recommended. Here are several critical points to take into consideration: ### Distinctions in Style 1. *Primer Composition*: Modest rifle primers usually Use a more durable cup than small pistol primers, created to resist increased pressures related to rifle cartridges. https://winchesterlargerifleprime17284.is-blog.com/37821110/using-a-compact-rifle-primer-in-pistol-ammunition-is-generally-not-advisable