Скачать с ютуб Bore scope of worn out barrel в хорошем качестве

Bore scope of worn out barrel

In this video, I start at the shoulder of the chamber of a .223 wylde 416r ss barrel and work my way forward. The horizontal lines indicate that the bore was not lapped. There are a lot of scar marks from shooting dirty ammo, a lot of copper fouling, gas port erosion, and, what seems to me, like ammonia residue from bore solvents. This barrel was rode hard and put away wet for thousands of rounds.