Employing a smaller rifle primer in pistol ammunition is generally not advised. Here are several significant details to think about: ### Distinctions in Layout 1. *Primer Composition*: Modest rifle primers generally Have a very more difficult cup than tiny pistol primers, made to resist greater pressures connected with rifle cartridges. https://connerddylx.isblog.net/using-a-modest-rifle-primer-in-pistol-ammunition-is-mostly-not-recommended-48656789