RE: Happy Holidays!
Good morning!
We bead blast and polish everything right down to the screws, etc. before bluing, so yes, all rust and pitting are removed as long as the pitting isn't excessively deep. If it is, you might consider upgrading the finish to a flat matte which masks any deep pitting that can't be removed.
With regard to a dent, we would need to send that out to a master gunsmith that we utilize in order to straighten it. I'm afraid that would be over and above a typical bluing job. Sounds like you might have quite a project there!
Have a great day!
Jennifer