Using a modest rifle primer in pistol ammunition is generally not recommended. Here are several vital details to take into account: ### Dissimilarities in Style 1. *Primer Composition*: Smaller rifle primers normally Use a more difficult cup than little pistol primers, built to resist increased pressures related to rifle cartridges. https://winchesterprimerseurope61593.blogdanica.com/31344673/using-a-tiny-rifle-primer-in-pistol-ammunition-is-normally-not-advisable