
I wouldn't shoot many hot loads through an FR-7, though. Some people have also bent the bolts after the fact.ħ.62X51mm NATO ammo can be shot through both. Some FR-8s were imported with bent bolts most were not. All were also made before WWII, while most of the FR-8s were built during or after WWII (speaking of the receivers as used in the original configuration prior to conversion). Most FR-7s have the crest removed, to include the date.
