Question about Ammo Bros. ammo

[23 Blast]

Just wondering if anyone else has used the 7.62x39 ammo from ammo bros. This is the brass-cased, Yugoslavian stuff they're selling in white cardboard boxes for about $139.99 per 500 rounds, IIRC. The store employee told me it was non-steel containing, and was also non-corrosive, but I've been hearing scuttlebutt around the 'net that Yugo stuff is invariably corrosive. Although I cleaned my gun as normal after I shot it, I didn't squirt with Windex or use hot boiling water - just Hoppes #9 and oil.

[voiceoftheright]

Were there little red slivers inside your receiver? That comes from the corrosive primers the Yugo uses. That's a dead give away. You'll know pretty quick if it was in fact corrosive. I would maybe check it out tomorrow and see how it looks if you want to know if it is or not. If you don't want to know, better flush that baby out now.

[bigthaiboy]

As a good rule of thumb, treat all mil-surplus ammo as corrosive. That way, you won't get any nasty surprises. The Yugo 7.62x39mm will not attact a magnet and is CA range safe. The Yugo is probably the best deal you will find in right now in non-steel jacketed ammo, since the yellow box Wolf seems to have completely disappeared again.

[rimfire78]

It's corrosive alright! I shot a couple of hundred rounds through my IO. Then threw it in the safe without cleaning it for a month. The barrel and muzzle brake had rust all through them.

[23 Blast]

Oh wow. Okay - once you get rust, how to get rid of it?

[Howie44]

Oh wow. Okay - once you get rust, how to get rid of it?

First, try not to (ask me how I know). If you do soak in oil and rub with a scotch brite pad, or 0000 BRONZE wool (not steel). this will help with rust without taking off the bluing

[Don Nguyen]

Good to know I was lied to by the guys at Ammo Bros.

Since I shot it through my AR a month ago, and believed them that it wasn't corrosive (before I knew better between surplus and whatnot), what's the best way to go about cleaning the gas tube now?

[23 Blast]

My Mini 30 that I used is the stainless model, so I'm not too worried about bluing, hehe.

Can I just use the hot boiling water method now? Or is it going to be months of elbow grease and teeth gnashing to get it all out?

[23 Blast]

Okay, so I got home and broke out the Mini 30 to see how bad the rust damage might be from the corrosive ammo. Field stripped, was looking for the tell-tale little orange/brown spots.

Hmm, action and bolt face looked good, but I bet the gas tube and the slide are in bad shape, right? Hmm, no - no rust there either. Could be the stainless steel is helping, but perhaps the bore is still messed up. So I soaked a patch with Windex and ran it down the bore. No, no orange tint on the patch at all! So maybe the guys at ammo bros were telling the truth, or perhaps stainless steel is the way to go if you have a bunch of corrosive milsurp.

Anyway, I'll still treat it as corrosive and give it the dose of Windex before regular cleaning, just to head off any potential problems if it is in fact corrosive.

[drummerdude1188]

It is most surely corrosive, no question about it. Pretty much the only non-corrosive eastern block ammo if the commercial stuff, (wolf, brown bear, silver bear) anything else is corrosive.

[Nate74]

I like Ammo Bros. usually but yeah... sometimes you get some 'not so correct' info there.

[Mail Clerk]

Okay, so I got home and broke out the Mini 30 to see how bad the rust damage might be from the corrosive ammo. Field stripped, was looking for the tell-tale little orange/brown spots.

Hmm, action and bolt face looked good, but I bet the gas tube and the slide are in bad shape, right? Hmm, no - no rust there either. Could be the stainless steel is helping, but perhaps the bore is still messed up. So I soaked a patch with Windex and ran it down the bore. No, no orange tint on the patch at all! So maybe the guys at ammo bros were telling the truth, or perhaps stainless steel is the way to go if you have a bunch of corrosive milsurp.

Anyway, I'll still treat it as corrosive and give it the dose of Windex before regular cleaning, just to head off any potential problems if it is in fact corrosive.

23blast,

If you can you might try and find out the date of manufacturer. I had thought if the ammo was made around the mid sixties then it's pretty much non-corrosive but that's American. I don't know about Yugo ammo. I would think it's better to make it non-corrosive cuz to make ammo to rust out the soldiers barrel is not a good thing.

Rusting is a chemical reaction when air makes contact with the chemical. I've heard tha trusting/corrosion can begin almost immediately after shooting. IF I decide to take a chance I'll give the bore a super cleaning with a brass/copper bore brush along with a good dosing of my favorite bore solvent. Consider Birchwood Casey's Bore Scrubber.That's my favorite cuz it a good overall cleaner and contains a preserative for the pores of the metal and works fantastic against copper residu.

Mail Clerk

[DSA_FAL]

The Yugo surplus and the Wolf Gold are made by the same company, Prvi Partizan. http://www.prvipartizan.com/ It is by far the best eastern bloc ammo you can find unless you consider Sellier & Bellot eastern bloc too. FWIW, they're both good ammo sources.

In my experience all the Prvi Partizan has been non-corrosive.

[!@#$]

ALL of the surplus yugo 762x39 is corrosive.