Maybe rust?


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jrkfantom
January 11, 2012, 02:48 PM
Hey guys, I ran some sit in bore cleaner through my ak (bottle said it's corrosive), but i've also shot corrosive 7n6 since then so im not sure which it is. I cleaned it very well after both though, as always, and i've never had a problem with rust before. When i shine a flashligt down it, the throat is a matte color, and my dad's 47 doesn't look like that. When i shine a light down the end of the barrel, I can see red/orange stuff in the grooves. However, when i shine it from the bottom, the barrel is still shiny like it always has been. I've been soaking it and scrubbing with wd-40 for a good hour and no rust colored stuff is coming out. Is this rust?

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rcmodel
January 11, 2012, 03:20 PM
No.

Most AK-47's I'm aware of have chrome lined bores.
Chrome doesn't rust.

What you are seeing is very likely jacket fouling.

Get a bottle of Copper Solvent and see if that helps.

BTW: You are using a bronze bore brush to clean the rifle aren't you?
Just plain patches isn't all you need to use.

jrkfantom
January 11, 2012, 03:28 PM
Yes, i'm scrubbing with a brush and i just let a pool of wd-40 soak in the bore for about fifteen minutes. That's good, maybe i just need to soak it with foaming copper remover again. Thanks man. i Was pretty worried

BTW, i have a century ak-74 and they have all kinds of shenanigans going on with their guns. It's a bulgarian kit i believe, and i read somewhere than century doesn't put chrome barrels in their guns, if that affects any of your answer. I think it s safe to assume it's not rust though, as no matter how much i scrub none comes out!

rcmodel
January 11, 2012, 03:35 PM
the throat is a matte color,Well, could it be you do a lot more mag dumps and bump firing then your dad does?

High heat from lots of rapid fire without cooling periods accelerates bore errosion right in front of the chamber.

That's pretty much what a grey frosted appearance is caused by.

rc

jrkfantom
January 11, 2012, 03:45 PM
that....that could do it

I have about 3000 rounds through it, and in that i have done maybe 4 mag dumps through it. Just one mag every now and then but very rapid fire. Also, i do live in texas so it does get mighty hot even when i'm not firing rapidly. Will that throat erosion greatly reduce the accuracy of my gun?

rcmodel
January 11, 2012, 03:56 PM
On an AK?

Not so's you will notice!

As long as the rifling is still good in the front half of the barrel, I doubt you will see any difference.

rc

jrkfantom
January 11, 2012, 04:03 PM
I filled the barrel with copper foam cleaner, and the grooves are clean i'm happy to announce. And i wasn't expecting match accuracy, i just wanted to make sure i'd still be able to git the cans! :neener:

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