Rust coloration in barrel grooves..

D3TH_OVRH3D

D3TH_OVRH3D

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Hey guys, I shot my 858 today, and as soon as I returned home I gave it a thorough cleaning (boiling water, then solvent and oil). After scrubbing the barrel with solvent and putting a few dry patches through it, I used my pen light to inspect the barrel. What I saw alarmed me. It looks like the grooves in the barrel have a light rust film in them. I've only had this rifle out once before and I cleaned and oiled it immediately upon returning home, then it sat in my cabinet. I'm worried that this rust coloring in the barrel will lead to more serious damage. I can't believe this happened, considering how anal I am when cleaning my guns. Would moisture in the room cause this, even in a well-oiled barrel? Also, what's likely to happen with this barrel now? I'd appreciate any help. This rifle has less than 200 rounds through it and is always carefully cleaned with detail immediately after use.
 
D3TH_OVRH3D said:
Hey guys, I shot my 858 today, and as soon as I returned home I gave it a thorough cleaning (boiling water, then solvent and oil). After scrubbing the barrel with solvent and putting a few dry patches through it, I used my pen light to inspect the barrel. What I saw alarmed me. It looks like the grooves in the barrel have a light rust film in them. I've only had this rifle out once before and I cleaned and oiled it immediately upon returning home, then it sat in my cabinet. I'm worried that this rust coloring in the barrel will lead to more serious damage. I can't believe this happened, considering how anal I am when cleaning my guns. Would moisture in the room cause this, even in a well-oiled barrel? Also, what's likely to happen with this barrel now? I'd appreciate any help. This rifle has less than 200 rounds through it and is always carefully cleaned with detail immediately after use.
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Relax its probably just some residual copper left from the bullets jacket. It isnt anything to freak out about. I too am extremely anal when it comes to cleaning my CZ/VZ/CSA's and sometimes it just needs a better scrubbing or oil it up good, take it out next trip, blast some more rounds thru it and clean it again. I have seen this in one of my barrels before and just ran more rounds thru it and cleaned it really good the next time and it was shiny, shiny again,
 
Copper fouling

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I've used both brushes. The first time I cleaned the rifle I realized the brush it came with was too soft, so I switched to a stiffer brush. I don't know how rust could possibly form in the grooves like this since I'm hardcore about cleaning, whether it's guns or anything for that matter. I take great care of my stuff, so I'm pretty disappointed. Is it possible that this is rust and will get worse? I scrubbed the crap out of it and oiled it up really well.
 
Why are you cleaning your rifle with boiling water? I would never subject my rifles to unnecessary moisture. If you used boiling water and then oiled it, it's possible you sealed moisture in.... but like others said, it could just be copper fouling.
 
SurvivorRye said:
Why are you cleaning your rifle with boiling water? I would never subject my rifles to unnecessary moisture. If you used boiling water and then oiled it, it's possible you sealed moisture in.... but like others said, it could just be copper fouling.
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I'm shooting surplus ammunition, so I start with boiling water to dissolve the salts to avoid corrosion.
 
SurvivorRye said:
Why are you cleaning your rifle with boiling water? I would never subject my rifles to unnecessary moisture. If you used boiling water and then oiled it, it's possible you sealed moisture in.... but like others said, it could just be copper fouling.
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Boiled water evaporates within seconds and once wiped down and cleaned "properly" its fine.
 
my 858 gets it too but it comes and goes. let some cleaner work on it for a while and you will get some very dark blue patches. i cleaned my 858 today and found some surface rust in the gas port and piston head....shooting in the snow must have let some water get in the vents..oh well its surface rust and comes off easy enough
 
For cleaning the copper i use this Cu+2 Copper Remover from bore tech and it do the job and it have no ammonia it not dangerous for the barrel ,
 
Come to think of it I actually did get a little blue on a couple of the patches. I'll get some good copper solvent and go at it again. Thanks a lot, everyone.
 
if you use boiling water and then don't follow immediately with a solvent or lubricant, you can get flash rusting. It seems to depend on the Humidity. I just clean with water based synthetic machine tool coolant-lube for corrosive ammo cleaning. No boiling water or Live Chicken sacrifice needed.
 
I shoot corrosive ammo and black powder (read salt, sulfur and charcoal). I have found that any barrel that isn't chrome lined (read 858) don't like the boiled water routine and rust can set up very quickly. I know, I know, "nothing disolves salt but hot water" blah, blah, blah,... "that's how your Great, Great Grand Papie cleaned his guns, and it was good enough for him..."

Well, Grand Papie didn't have WD40 at his disposal, if he did, he'd have used it! (Great, Great Grand Papie was a smart guy). IMHO and experience, flush liberally with WD40 ( the WD stands for water displacing) and don't look back.

I then store my firearms with "Bore Butter" run through the rifling for any type of long term storage {again, if its not chrome lined}. The problem with rust is once it starts its a lot of work to absolutely get rid of it.

Good luck.
 
Montana Extreme copper solvent will solve the OP's problem.

Don't worry, it happens with every copper jacketed round fired in every rifle.
 
I do the same boiling water and WD 40 routine as described with no problems.

If you want to remove copper fouling without scrubbing the heck out of your bore try WIPEOUT foaming bore cleaner. I'm addicted to this stuff!

The spray can challenges you to try it on a bore that you thought was already clean... I did and couldn't believe the dark navy blue copper fouling I saw coming out of it. It took 3 treatments on one rifle to get rid of the buildup. I won't ever go back to the conventional cleaners after using this stuff.
 
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