Rust in bore.

Shoot it out.

Yeah, if it's not yours i'd be concerned about giving it back looking even worse when you expose the damage caused by the rust. But if you do it i think the best thing you could do is use an undersized bronze brush caked in wet baking soda and drag that back and forth a few times to try and remove as much as possible, and then boil the barrel in distilled water with baking soda in it to release the scale and neutralize the steel underneath. If you are lucky it's not that old and will convert from red rust to black rust which has the oxygen molecule removed and will not further oxidize. Then bake the barrel at 180c with the bore full of used motor oil to penetrate deep into the pitted steel to protect it for as long as you can.
 
Last edited:
The only way to find out what is under it is to start scrubbing. oily patch, brass brush and scrub away. Pass a clean patch and repeat as necessary.
 
Opinions

Be careful about uninformed opinions on this site --

Many opinionated newbies with little experience.

Research with google - things like Kroil and JB bore paste.

The empirical data (minus opinions of what the inexperienced and uninformed) do will clear your path.

:ar15:
swingerlh.gif
 
Be careful about uninformed opinions on this site --

Many opinionated newbies with little experience.

Research with google - things like Kroil and JB bore paste.

The empirical data (minus opinions of what the inexperienced and uninformed) do will clear your path.

:ar15:
swingerlh.gif

Aww... I was about to suggest the old cotton ball, toothpaste and wire coat hanger remedy but nevermind. :mad:
 
I'm in the process of cleaning up some estate guns that look like they were left muzzle down in a pan of water, and like yours the first inch of barrel inside the bore is badly rusted and pitted. In my case I think chopping the barrel and re-crowning might be the best option, but as Chopper 1 suggests, JB Bore and Kroil might be enough in your case.
 
A copper brush with a section of cleaning rod in a cordless drill saves a lot of work.Mild abrasive may be added............Harold
 
I don't know what stage of rust is being discussed, but a few years back, I exprimented with a bunch of rust removing stuff. I started with Hoops #9 and went as far as CLR and CLR's grand daddy, an industrial rust remover called Evapo-Rust.:redface: OK, I was Young and stupid (...come to think of it, I was just stupid :p). While they didn't cause any damage, neither did they perform any miracles. So, here is my (admittedly uninformed) two cents;

Regardless of what rust removal product you use, most of the work is done by the copper brush. So assuming the gun is safe to shoot, I would start with the least intrusive/harmful cleaning product. I will clean and brush a few times, shoot and inspect. If necessary, move up to a more powerful, gun safe rust removing agent and repeat.

The most powerful gun specific cleaning product I have come across is "Wipe-Out" which is a foam action product. While it is not sold as a rust removing product (more of a carbon and copper removal agent) it actually removes rust very well and protects against future rust. Do your own research on this product. There was a thread on this product right here 2-3 years ago.
 
Solvents and brushes will take out the loose rust only - no chemical action. Shooting the rifle after brushing definitely takes out the rest of the surface rust. Done it several times. What remains will be a slightly dark (pitted) area.
 
I cant remember the exact name of it cause its been so many years since I had some of it. Its a coil cleaning acid that we used to run thru the car wash hoses to keep them clean.I got a gallon of its and tried it on some rusty wrenches. Tied them to a wire,dropped them in for 2 seconds and they came out clean.

Try a local car wash and see if they still use it. Maybe a quick swipe with a q tip soaked in it then wiped and oiled after will be just the ticket for what you need.
 
Juice of 2 lemons and grated rind of 1, 1 cup sugar, 1/2 cup butter, 1 egg, 3 teaspoons milk, 1/2 teaspoon soda, 1 teaspoon cream of tartar. Flour to make rather stiff.

Yes, I do realize that's a recipe for lemon snaps, I think you should make a batch, and leave your friends rifle alone. At the very most, copper brush, and shoot it. Mention it right away if you feel better about it. The lemon snaps will fix everything else, they're delicious!
 
Last edited:
rust in barrel

I read an article one time about cleaning out rust from a barrel . it said plug the muzzle and fill it with kerosene and let it stand over night . then scrub with a bronze or stiff nylon brush . I have never tried this as of yet so let me know if it works . I found this on a site from the US.
 
What about the cheaply obtained Remington 40X bore cleaner? It has a MILD abrasivenes to it and won't break the bank on a borrowed gun.

Be careful with "milyld abrasive" bore cleaners... A friends dad lapped a mosin nagant bore from .312 to .315 with this stuff as he thought black patches, still dirty :S

I'd use a copper, brass, or bronze brush. Scrub repeatedly. If you have a kit, try the .270 brush and scrub back and forth near the muzzle where the pitting is (don't do it with the 30 cal brush, it'll biund up and get stuck if you change direction inside the bore). If it's pitted, there's not much you can do about it. Clean it as best as you can, and shoot some lead bullets to full in the pits :S
 
Back
Top Bottom