Using a tiny rifle primer in pistol ammunition is usually not advisable. Here are several important details to contemplate: ### Variances in Style and design one. *Primer Composition*: Smaller rifle primers commonly Use a more challenging cup than modest pistol primers, made to resist larger pressures connected with rifle cartridges. https://winchester-large-rifle-pr17172.anchor-blog.com/11679094/using-a-small-rifle-primer-in-pistol-ammunition-is-usually-not-encouraged