looking at selling a barrel, got someone interested but want to ensure it is good before sending it to him.
Anyone got one so I can check the barrel?
Happy to come around and you check it so I don’t need to take it away.
No egg sucking intended but be careful with what you or your buyer may see from the borescope. Unless you have a brand new reference barrel to compare against then even a good barrel can look "bad" to the untrained eye.