The Russian Mosin Nagant Forum

So I saw a bit of what seems rust inside the barrel of my T53. I then grabbed my trusty brass brushes, bottle of hoppes 9, and rags, and proceed to rub the inside of the barrel for quite while... until brush was feeling rather loose. I then wet a rag with hoppes and ran inside the barrel; it was dark as I expect. I then used bore's snake to clean that residue and looked into the barrel: at least as far deep as I can see (not that deep mind you) the rust-looking thing still exists.

What can I use to make it go away?

Looks rather like copper fouling. Let the Hoppes soak longer. I wouldn't worry about it much.

You may think I'm crazy, but I believe that is a worn land and groove. Rotate the barrel and take another pic.

First, get that dam dog or cat hair off the bore! (about 7 o' clock....)

Then get a good copper solvent, and use a .32/8mm phosphor bronze brush, or better yet same size stainless steel brush, and apply elbow grease vigorously. Should cure your problem.

entropy wrote:First, get that dam dog or cat hair off the bore! (about 7 o' clock....)

That would be a cat. If she had her way she'd be helping me clean the firearms...

entropy wrote:Then get a good copper solvent, and use a .32/8mm phosphor bronze brush, or better yet same size stainless steel brush, and apply elbow grease vigorously. Should cure your problem.

Call me weird but I feel really uncomfortable using a steel brush in the barrel.

What would be a good copper solvent? Only gun cleaning chemicals I have at home are these guys:

Start with the Hoppes first, it's the most gentle of those two. If that doesn't get out what your want give a try with the Sweets. Sweets does work really well just make sure to follow the directions and not let it sit in the bore too long.