Blue Bullets
I looked at some Black Hills Gold .30-06 cartridges yesterday that had Barnes bullets in them. These bullets were blue. What is the deal with the blue on these bullets? What is that stuff -- paint or some other substance? Does this stuff rub off in the rifle barrel and how do you remove it if so?
I'm sure this is a rudimentary question, but I have not used these bullets before and so am in the dark.