No damage to cannon breach/barrel

Can you explain to me why i have no damage to enemy cannon breach/barrel?
Everything i have is just a “Hit”, how?

I can attach replays if needed.
replay 1.rar (3.8 MB)
replay2.rar (2.1 MB)

In such cases, it’s best to look at the server replay. Some times what you see on your client isn’t exactly the same as what happened on the server.