General up keep as per usual stuff that we do post shooting will negate the rust developing as you said putting 10-15K rounds through it there will be a few more scuffs not just on the barrel as inevitably things happen.
I would not mind any of my barrels doing 10-15,000 rounds the only one I have heard being able to do that round count is the barrel they fitted to the E4 - M60 which they claimed was good for 15,000 before changing.
Any rust on those marks [they aren't scratches!] should take about 20 years of serious rust action to cause any damage to the barrel. They are cosmetic only.
I spoke with Brian at BDL, and while I can send in the rifle to get repainted and baked, I do feel it's overkill at this point. However, Brian was super helpful in pointing out that I can just dab on some Oxpho-Blue from Brownell's on the scratches, wait a few minutes for it change colour, and then rub off with a gun oil soaked rag or a toothbrush with gun oil on it. Then repeat until the colour is as dark as I want it.
I own an Enfield No 4 Mk 2 in fairly mint condition, but unfortunately this past weekend I had a small accident where I broke a hanging, glass lampshade with the tip of the barrel and front sight. I'm quite annoyed with myself over this accident, as the barrel and front sight guard now have some scratches. The front sight guard I don't care about, as it's easily replaceable, but I am worried about the barrel.
Can anyone please recommend what would be a good touch-up solution for fixing these scratches on the barrel? I've looked online and found the Birchwood Casey Super Black touch up pen, but it seems kind of a poor choice. There's also the possibility of buying high heat automotive or BBQ paint and spray painting that on, but that seems like maybe overkill.
I'm not so worried about the look of the scratches as I am about the possibility of corrosion or rust damage as time goes on, although I do know that eventually, after 10-15k rounds, I will replace the barrel anyway.
Photos of scratches attached. Would greatly appreciate any help!