Employing a smaller rifle primer in pistol ammunition is mostly not advised. Here are several crucial points to think about: ### Differences in Structure 1. *Primer Composition*: Compact rifle primers generally have a tougher cup than tiny pistol primers, intended to face up to higher pressures associated with rifle cartridges. https://winchester-41-small-rifle03826.blogzag.com/75505468/using-a-modest-rifle-primer-in-pistol-ammunition-is-generally-not-encouraged