Using a compact rifle primer in pistol ammunition is usually not recommended. Here are a few essential details to contemplate: ### Variances in Design 1. *Primer Composition*: Little rifle primers typically have a harder cup than little pistol primers, designed to face up to bigger pressures related to rifle cartridges. https://winchesterprimersforsale16014.thelateblog.com/31953526/using-a-smaller-rifle-primer-in-pistol-ammunition-is-normally-not-advised