Using a smaller rifle primer in pistol ammunition is normally not suggested. Here are several vital details to look at: ### Differences in Style 1. *Primer Composition*: Little rifle primers usually have a tougher cup than small pistol primers, designed to face up to bigger pressures related to rifle cartridges. https://eduardojlkjj.blogunok.com/31668913/using-a-tiny-rifle-primer-in-pistol-ammunition-is-generally-not-encouraged