Utilizing a small rifle primer in pistol ammunition is usually not advisable. Here are some significant details to take into account: ### Differences in Layout 1. *Primer Composition*: Small rifle primers normally Have a very tougher cup than tiny pistol primers, created to resist larger pressures linked to rifle cartridges. https://winchestersmallpistolprim79183.blogdon.net/using-a-modest-rifle-primer-in-pistol-ammunition-is-normally-not-recommended-47635509