Using a smaller rifle primer in pistol ammunition is generally not suggested. Here are several essential points to look at: ### Differences in Design and style one. *Primer Composition*: Tiny rifle primers typically Use a tougher cup than compact pistol primers, made to resist higher pressures connected to rifle cartridges. https://winchester41smallriflepri95295.bloggip.com/31438640/using-a-tiny-rifle-primer-in-pistol-ammunition-is-normally-not-advisable