Employing a small rifle primer in pistol ammunition is normally not advisable. Below are a few important points to consider: ### Variances in Layout 1. *Primer Composition*: Compact rifle primers normally Have a very more difficult cup than tiny pistol primers, made to resist greater pressures related to rifle cartridges. https://winchesterprimers12356.mybjjblog.com/employing-a-smaller-rifle-primer-in-pistol-ammunition-is-mostly-not-suggested-44558730