Utilizing a smaller rifle primer in pistol ammunition is mostly not advised. Here are some vital factors to contemplate: ### Variations in Structure 1. *Primer Composition*: Small rifle primers generally have a more difficult cup than small pistol primers, built to face up to increased pressures linked to rifle cartridges. https://winchester-primers-uk09494.activoblog.com/32829636/utilizing-a-small-rifle-primer-in-pistol-ammunition-is-usually-not-recommended