Using a little rifle primer in pistol ammunition is mostly not proposed. Here are some crucial points to think about: ### Discrepancies in Design 1. *Primer Composition*: Compact rifle primers typically have a harder cup than compact pistol primers, built to face up to increased pressures connected to rifle cartridges. https://winchesterprimerseurope86706.wssblogs.com/31417980/employing-a-smaller-rifle-primer-in-pistol-ammunition-is-normally-not-advised