Stainless Steel And Corrosive Ammo

[massgun]

Boy do I feel dumb! Long story short, I just found out while at the Marlboro gun show I had shot some corrosive Yugo 7.62x39 through my stainless Ruger Mini-30 about a month ago. It was only a few rounds, so I did not clean it.

I got home and immediately got the gun and tried to pull the bolt back. Yup, it was stuck. Dumped a little Kroil around the bolt where it locks up with the receiver, let it sit awhile and gave the charging handle a gentle whack with a rubber mallet.

It did come free and, as I looked everywhere I could see with a mini-mag flashlight, I saw minimal rust. Actually very little as I would expect from stainless steel. The chamber and bore look pretty good except for one tiny spot about halfway down the barrel where I see a spot that doesn't look like the rest of the barrel. I cleaned the barrel and chamber area with Mpro7, then shooters choice, then ran some Kroil through and it looks pretty clean.

So, I'm not too worried about the chamber or barrel but I am a little concerned with the gas system and the inner areas of the bolt. Does the gas system and bolt need to be taken apart to clean it thoroughly? Can this be done without special tools. All advice (and criticism ) welcome.

I will be at the Westwood car shoot and was planning to burn up the rest of this ammo, but I may rethink that and put it up for sale at the car shoot.

 

[BillK]

First in line on the ammo your selling. PM sent.

 

[vellnueve]

Strip the gas system and clean it out.

You're lucky. Stainless steel is corrosion resistant, but if you leave anything long enough, it WILL corrode.

 

[Ralph Sterling]

Stainless steel and currosive

Dear Massgun:I am responding to this as I do not feel you got a informative reply to your question and concerns.First off the spot you see in the barrel is a reflection of the gas tube port drilled in the barrel, the reflective mirage is a standard observation.I am from the Viet Nam era a U.S. Navy veteran, I have 2 Ruger mini 30’s at the present time both stainless one from the first run of Ruger Stainless rifles and one from the most modern edition from Ruger.I am old school so to me all ammunition is corrosive, anything that leaves any residue in the barrel can accelerate rust, and just fyi I use Yugo ammo as my first choice. As any battle trained military person after firing clean your firearm. Yes hot water and soap work great and the nice thing about the Ruger Stainless is this makes for cheap cleanup. Use whatever ammo you can find, clean your firearm before storage. You will get many many years of fine service from this rifle and also this ammunition.If you have not used up this ammunition or did not sell it please consider selling any leftovers to me. The supply of the Yugo ammo is gone at least here in Alaska and I would dearly love to have at least another 1200 rounds.Thanks in advanceRalph Sterling

Boy do I feel dumb! Long story short, I just found out while at the Marlboro gun show I had shot some corrosive Yugo 7.62x39 through my stainless Ruger Mini-30 about a month ago. It was only a few rounds, so I did not clean it. I got home and immediately got the gun and tried to pull the bolt back. Yup, it was stuck. Dumped a little Kroil around the bolt where it locks up with the receiver, let it sit awhile and gave the charging handle a gentle whack with a rubber mallet.It did come free and, as I looked everywhere I could see with a mini-mag flashlight, I saw minimal rust. Actually very little as I would expect from stainless steel. The chamber and bore look pretty good except for one tiny spot about halfway down the barrel where I see a spot that doesn't look like the rest of the barrel. I cleaned the barrel and chamber area with Mpro7, then shooters choice, then ran some Kroil through and it looks pretty clean.So, I'm not too worried about the chamber or barrel but I am a little concerned with the gas system and the inner areas of the bolt. Does the gas system and bolt need to be taken apart to clean it thoroughly? Can this be done without special tools. All advice (and criticism ) welcome.I will be at the Westwood car shoot and was planning to burn up the rest of this ammo, but I may rethink that and put it up for sale at the car shoot.

 

[Finalygotabeltfed]

Well, gonna rub it in a little. Here's my post from when you first bought it and inquired:

Its the best 7.62x39 milsurp ammo ever imported bar none, but it is corrosive so clean accordingly....like before you leave the range so you don't blow it off or forget and ruin a gun in the process.
There is no such thing as "mildly corrosive", thats just another deceptive marketing gimmick that someone dreamed up to bring the fence sitters into the fold to use corrosive ammo in guns that they would otherwise never consider using it in.
The fact that the phrase showed up a bunch of times is the embodiment of Joseph Goebbels' philosophy that "If you tell a lie big enough and keep repeating it, people will eventually come to believe it."
Don't believe it and clean your guns after shooting Yugo ammo.