Using a compact rifle primer in pistol ammunition is generally not proposed. Here are several significant factors to consider: ### Discrepancies in Design one. *Primer Composition*: Little rifle primers typically Use a more difficult cup than compact pistol primers, made to face up to larger pressures related to rifle cartridges. https://archerjnlhd.nizarblog.com/31566276/using-a-little-rifle-primer-in-pistol-ammunition-is-mostly-not-advisable