Bore scope help you assess the condition of a barrel, and tell you a lot about how your cleaning regime is working. But the most important factor as to whether you need a new barrel is really down to how it shoots. The only caveat to that is if you shoot a lot of matches and the barrel looks bad on the bore scope, you probably dont want to risk taking it to a match in case it goes south while you are shooting the match. A friend of mine that shot a lot of matches told me "all a bore scope does is scare you when you look down your barrel". What he meant was the even a good shooting barrel can look pretty ugly once it has a few rounds though it.
Having said all of that, those particular photos dont look good. But you really want to see what the chamber & throat areas look like. From what you posted already, I imagine the chamber end will look even worse.