Using a smaller rifle primer in pistol ammunition is generally not advisable. Below are a few important details to take into account: ### Discrepancies in Design one. *Primer Composition*: Smaller rifle primers generally Have a very harder cup than little pistol primers, built to resist larger pressures related to rifle https://juliuslhzof.ttblogs.com/11017653/employing-a-small-rifle-primer-in-pistol-ammunition-is-generally-not-recommended