Using a small rifle primer in pistol ammunition is mostly not advised. Here are some significant details to contemplate: ### Discrepancies in Layout one. *Primer Composition*: Small rifle primers commonly Use a more durable cup than little pistol primers, developed to face up to greater pressures associated with rifle cartridges. https://winchester200primers57890.pointblog.net/employing-a-tiny-rifle-primer-in-pistol-ammunition-is-normally-not-advised-73743783