I guess I should have qualified my suggestion. Every gun I've every fired has had a shiny bore. I've never shot anything else.
I do get concerned when the texture of the bore looks like it will take the jacket off the bullet like a rasp. I've passed up several pistols because I couldn't get the price down low enough to justify installing a new barrel.
They looked fine on the outside but really terrible when I've lit up the bore...
I still have some more to learn....
Dave in TN