Air Arms Owners Club

Hi all, I've just recently become a new owner of a second hand s410. Absolutely love the gun but there's a couple of niggles id like to fix.
There's pitting on the barrel and cylinder, it looks like it mayy have had some surface rust in the past and previous owner has sanded it an reblued it, however the pitting is still noticeable and I'd like to get it smooth and shiny.
So the question is, what steps can I take to get rid of the pitting, I've seen tutorials on how to re-blue and I'm confident about doing that but not sure if the pitting will remain?
Would it just be a case of keep sanding and smoothing the barrel and cylinder to get as smooth as possible before re blueing or are there better options? I was thinking some sort of metal filler to smooth it out before sanding(I've done some body work on cars before but I know this is alot different) ... I really don't know what's best and don't want to make it worse.

Thanks alot

Rubbing down the barrel I understand but two much rubbing can cause a dip which you don't really see until its blued and catches the light, but I suppose that will depend how deep the pitting is.
With the cylinder again depending on the depth of pitting I would get in touch with Julian and price a new one, there is a lot of pressure in there.

Thanks eboswan, thi k I'll give it a light rub Down with some wet and dry re-blue.

What about painting them? What sort of paint could be used? Just another thought..

Thanks

Thanks v much!