After shooting I always clean my sks and other surplus rifles, yet all of them (non chromed barrels) have a thick build up of black residue in a few weeks that wasn't there when I put the gun away. I thought it was rust building up, but comes off with a few swabs with the bronze brush. Only see it in my Russian rifles and handguns so I think it's ammo related. Could it be the oil I use drying out and leaving a greasy mess, but then why not in any of the other rifles or shotguns I own? Maybe the oil getting acidy and pulling out the carbon from the steel?
What is the built up black thing in barrels?
- Thread starter bandit86
- Start date
Brass brush, clean rag and alternate until clean, then oily rag to make sure all is oiled.
I've used chain oil, gear oil, engine oil, gun oil, g96, I don't know what was used on those last.
- Location
- Thunder |Bay
Some ammo uses asphalt as a sealant. It's below the case neck so you don't see it. If you use a kinetic bullet puller to pull surplus bullets, run the case into your seater die to seat the bullet a little deeper just to break the asphalt seal. Then use the kinetic bullet puller. If there is black schitt on the bullet, that's your stuff.
That's actually how I clean my rifles on purpose. Give it the boiling water (if corrosive) then give it a decent cleaning, don't worry about getting it so patches come out clean, a little black is ok for now. Then I run an extra oiled patch down the barrel and let it sit for 2-3 days, after that I can get the barrel clean with only a few more patches.
