Borescope Usage and Identifying Barrel Wear

Discussing what to look for when inspecting your barrels through a borescope. Timestamps 0:00 - Introduction 1:43 - Copper fouling 2:52 - Rifling 3:31 - Fire cracking 3:59 - Gas port erosion 4:38 - Carbon ring 7:10 - Factory defects 8:18 - Defining a shot-out barrel