Rust or carbon/dirt/gunk?

Dling

Dling

CGN Regular
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Location
Alberta
Okay, so I don't have any experience with corrosive ammo as of yet. I've noticed what looks like rust on my gas system, and possibly minor pitting on my piston. The only possibly corrosive ammo I can think of shooting at any point was about ~50 rounds of surplus stuff I got from someone back in the spring sometime. The last 150 or so rounds I've fired have been Norinco 7.62x51 (stuff in the crate) over the span of a few weeks. It's listed as noncorrosive but I happened to replace my flash hider with a USGI one maybe two weeks ago and I've noticed some of the "rust" sitting in the flash hider slots. Any idea what's going on or a remedy to this? At the moment I'm thinking I should just use a bit of scotch-brite on my piston.
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that be rust and some pitting, first thing to do go give your rifle a bath in hot water ( get ride of the corrosive salts) then dry it, then take some super fine steal wool and oil and remove the rust and then give your rifle a good cleaning and give her a good oiling.
 
blista77 said:
that be rust and some pitting, first thing to do go give your rifle a bath in hot water ( get ride of the corrosive salts) then dry it, then take some super fine steal wool and oil and remove the rust and then give your rifle a good cleaning and give her a good oiling.
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How long should I soak it in hot water for?
 
Dling said:
How long should I soak it in hot water for?
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it only takes a second, i usually just pour the water down my barrel and gas system, then i make sure every part dry( you can use cold water if u like but if u use hot water it usally drys itself :) ) but its looks like you let your rifle sit for awhile after shooting corrosive ammo.
 
blista77 said:
it only takes a second, i usually just pour the water down my barrel and gas system, then i make sure every part dry( you can use cold water if u like but if u use hot water it usally drys itself :) ) but its looks like you let your rifle sit for awhile after shooting corrosive ammo.
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I agree, but he also said his new flash hider is showing rust. Search "corrosive ammo test" and do it with your Norinco stuff, just to be safe. I will, before I shoot any of mine, now.
 
5440fight said:
I agree, but he also said his new flash hider is showing rust. Search "corrosive ammo test" and do it with your Norinco stuff, just to be safe. I will, before I shoot any of mine, now.
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Is it possible that the corrosive salts that have bin sitting in the rifle, get moved when he shooting? if u know what i mean, like the salts just get cycled through his rifle every time he goes shooting

Not sure if that possible though
 
blista77 said:
Is it possible that the corrosive salts that have bin sitting in the rifle, get moved when he shooting? if u know what i mean, like the salts just get cycled through his rifle every time he goes shooting

Not sure if that possible though
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Anything is possible, plus, things still rust without corrosive ammo, all it requires is moisture and time. Still, wouldn't hurt to check. Flush it well, scrub off any rust, clean, and oil. Good to go. :)
 
My barrel seems fine. Still shiny when I shine a light at the chamber (hurray chrome lining!). Not sure how comfortable I am with hitting a primer with a hammer and nail...accident prone might as well be my middle name ;). Might give it a try though, since the thought is sitting at the back of my mind now. I'm hoping it's mere coincidence that I started shooting the Norinco stuff when the rust started happening. I don't think the FH stuff is regular surface rust from sitting, like I said, I've only had it for 2-3 weeks and it's a reparked one from treeline. Regardless, I'll definitely give my rifle a good cleaning this weekend as per instructed thus far.
 
Yeah, better safe than sorry. Honestly, I shoot lots of surplus ammo that's corrosive, and it's great- just clean properly. It's the stuff that leads me to be complacent, by claims that are false, that scare me. The chinese are not exactly wizards of quality control, or masters of the english langauge, when it comes to products, and their descriptions... still, the price is right, if you don't mind doing the quality control your self.
 
Corrosive ammo usually causes rusting on the bare metal, but your photos show rust on what should be finished metal. YOu said the gun was reparked, I wonder if it was not done quite right, is "treeline" a business or a member on CGN?
 
But on the other hand, that last photo of the piston, that is ridiculously rusted, was it nice and shiny previous to all this corrosion?
 
john@ said:
Corrosive ammo usually causes rusting on the bare metal, but your photos show rust on what should be finished metal. YOu said the gun was reparked, I wonder if it was not done quite right, is "treeline" a business or a member on CGN?
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john@ said:
But on the other hand, that last photo of the piston, that is ridiculously rusted, was it nice and shiny previous to all this corrosion?
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The barrel/gas cylinder/front band is original norinco parkerized, the flash hider is advertised as reparkarized from treelinem14 . com down in the States. They're a legitimate business and I've ordered a few things from them so far with no reason to question quality of the parts. The piston was shiny, the 'tail' had a black finish on it. It's hard to tell from the pictures, but there is notable pitting on it...not #### falling off pitted, but still pitted. I sanded off most of the rust from the stem. Will go over it more meticulously on the weekend and get it shiny again hopefully. It's the first time I've had my gas system apart in a months and I have only had maybe 2 fail to feeds in over 500 rounds. One thing concerning me is the fact that there's rust coming out of where the spindle valve is.
 
a lot of people don't seem to know this, but i'll let you in on a tid bit of information... you ARE supposed to clean your firearms from time to time. corrosive ammo or not. when was the last time this rifle was cleaned/oiled?
I assume it's been a while as if you cleaned semi-regularly you probably would not have see this surface rust.

that being said, it should clean off with very little effort, if it doesn't oil it for storage and after a few outings/cleanings it should start to improve then become un-noticeable... live and learn.
 
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silverfoxdj said:
I don't mind cleaning but not every visit I shoot 3 timed a week..
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I don't clean every visit and I shoot once a week, I know i'd be kicking myself if I found one of my guns even slightly rusted like the OPs, only if it's wet/raining will I clean when I get home, but on wet/rainy shooting days I bring less guns so i'm not spending to much time cleaning when I get home.
who knows how dry the air is where the OP stores his firearm it may be moisture in the air causing this, if that's the case then a light oil for storage would be a very good idea.
 
Being a generous fellow I'll share this with the Big Battle Rifle guys.
(it's posted in the RED RIFLE section already)

This is a response from a close friend who was a officer in the Canadian Army,
I asked him if they cooked water for there guns when they cleaned them ie.
same procedure done by all loyal GUNNUTERITZ


Hello Bren,

I learned 2 ways to clean any weapon during my time in the CF.


Method 1

The standard was to detail strip or field strip the weapon down to its component parts in order and lay them out.

Then CLP or oil was used with rags or cleaning cloths, depending on the era and weapon (pre-1987 oil, post 1987 CLP) to remove all dirt, rust (chargeable offence if one's weapon had any rust on it,) corruption or dirt.

No abrasive materials or tools were allowed with the exception of a wire bore brush for the chamber and inside of the barrel. Other permitted cleaning materials were cotton 1X2 inch cloths for use with issued pull thoughs, and 3M cloth, elbow grease, cue tips were OK too.

Pre 1987 linseed oil might be used on the wood furniture for the FN's but more likely just the same oil as was used for the metal components.

Once the weapon was clean a thin layer of oil or CLP was applied an the weapon was reassembled ready for inspection and then return to the lock-up.

Other illegal methods and materials might be used to clean a soldier's weapon but trouble would arise if caught. Our instructors in Gagetown allowed us to use WD 40 on our weapons so every man had some in his webbing to make the job easier.

Method 2

For competition purposes, the foregoing procedure was used but the weapon was maintained in a consistent state of dirtiness to give consistent results on the range. I believe our Bisley shooters and competition rifle teams would all use this method when match shooting. We did the year I was the officer for the rifle team at my old regiment in Kingston, the PWOR.

Don't know if this helps! Cheers,
 
Dling said:
Okay, so I don't have any experience with corrosive ammo as of yet. I've noticed what looks like rust on my gas system, and possibly minor pitting on my piston. The only possibly corrosive ammo I can think of shooting at any point was about ~50 rounds of surplus stuff I got from someone back in the spring sometime. The last 150 or so rounds I've fired have been Norinco 7.62x51 (stuff in the crate) over the span of a few weeks. It's listed as noncorrosive but I happened to replace my flash hider with a USGI one maybe two weeks ago and I've noticed some of the "rust" sitting in the flash hider slots. Any idea what's going on or a remedy to this? At the moment I'm thinking I should just use a bit of scotch-brite on my piston.
erxq.jpg

htv.JPG

w5gx.jpg
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Sad to say that in moist climates all M14's will rust if not taken care of after shooting. As when you heat up this rifle then tuck it away quickly in 40% humidity plus climate and don't wipe it down with oil. It will start to rust and almost always in the same spot it will start.
That being the gas system. Even inside the piston can rust up on ya.
Don't worry ;)
Time to call in Murdoc and get that red goo taken care of professionally :D
Like it never even happened :p
 
fred0000 said:
a lot of people don't seem to know this, but i'll let you in on a tid bit of information... you ARE supposed to clean your firearms from time to time. corrosive ammo or not. when was the last time this rifle was cleaned/oiled?
I assume it's been a while as if you cleaned semi-regularly you probably would not have see this surface rust.

that being said, it should clean off with very little effort, if it doesn't oil it for storage and after a few outings/cleanings it should start to improve then become un-noticeable... live and learn.
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I stay up to date with my guns and check them over after every range trip for proper lubing. Rust doesn't just happen like magic... I've heard the gas system is fairly low maintenance so I've mostly stayed away from it, hence the minimal cleaning there. Other than that, my bolt, trigger group, op rod, spring guide and spring stay clean and lubed, always.

Fred, it has been fairly humid the last couple weeks. There is a dehumidifier running the the area I store my firearms though.
 
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