Using a small rifle primer in pistol ammunition is normally not proposed. Here are a few crucial details to think about: ### Distinctions in Design 1. *Primer Composition*: Smaller rifle primers typically Have a very tougher cup than compact pistol primers, designed to resist higher pressures associated with rifle cartridges. https://winchester-large-rifle-pr05924.blogoxo.com/31557442/employing-a-modest-rifle-primer-in-pistol-ammunition-is-generally-not-encouraged