Is this ammo corrosive?
- Thread starter super7
- Start date
Yes, the MFS I have used is corrosive, although milder than other surplus I have shot. Be aware also that although it says "lead core" it has a steel jacket and will penetrate or dent steel backstops, gongs, silhouettes, etc...
I'm being told by the guy selling it that he has folks comming back to him after firing a bunch of it and saying that it is not corrosive (not sure how they know that, if they just leave the guns uncleaned after firing and see what happens or what).
Anybody want to loan me a sks for a week to prove it
What would be a good way, besides the above, to prove it?
Anybody want to loan me a sks for a week to prove it
What would be a good way, besides the above, to prove it?
super7 said:I'm being told by the guy selling it that he has folks comming back to him after firing a bunch of it and saying that it is not corrosive (not sure how they know that, if they just leave the guns uncleaned after firing and see what happens or what).
Anybody want to loan me a sks for a week to prove it
What would be a good way, besides the above, to prove it?
Yes it's hard to say. I sometimes get the impression that some people think that if a rifle isn't rusting immediately after a shoot then the ammo is not corrosive, or that if they clean their rifle after shooting only with oil and it doesn't rust, then it's not corrosive, or if etc...
Some of the factors that many people do not seem to consider are:
1. Humidity. Corrosive salts that are deposited in the barrel or gas system that cause rust will not do so without moisture. If you are storing your firearms in a dry enough location it might take a long time for the salts to react, if ever.
2. Chrome. Most eastern bloc military rifles have chromed bores and gas pistons for both ease of maintainence by a conscript army, and because the ammunition had corrosive properties. That chrome bore is not going to rust. So you may well shoot corrosive ammo through a Vz 58 and let it sit for a week, not see any rust when cleaning and conclude that the ammo is not corrosive.
Anyway, you don't need to prove it, you can take my word for it:
That is the front of a chromed CZ858 gas piston. The dark spots on the face of the piston is rust, as is the orangy material on the rag. This is after the parts have been cleaned thoroughly with boiling water and well oiled. I wish that I had gotten some pics of the rod before it was cleaned, or the bore. Both were covered in a light orange dusting of rust, as was the gas linkage port. The bare metal surfaces inside the action were unaffected. The only ammunition shot through that rifle was MFS white box, and it had been left uncleaned for 1-2 weeks because the owner had been assured that the ammunition was non-corrosive.
Be very skeptical if anyone tells you eastern bloc ammo is not corrosive.
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The MFS corroded my VZ-58 like nothing else
