Using a modest rifle primer in pistol ammunition is mostly not advisable. Here are a few crucial points to look at: ### Dissimilarities in Structure one. *Primer Composition*: Little rifle primers usually have a more durable cup than smaller pistol primers, created to withstand increased pressures linked to rifle cartridges. https://jasperwoalx.pointblog.net/using-a-little-rifle-primer-in-pistol-ammunition-is-usually-not-advised-73783801