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1/25/2018 7:38:29 AM
Posted: 11/19/2003 4:35:06 PM EST
I have a few hundred rounds of this ammo a friend gave me after he sold his SKS. I looked it up in the above chart and it's PRC. I'm guessing '90'is the date of manufacture. Is there a general rule as to which chinese ammo is corrosive?
Link Posted: 11/19/2003 4:57:10 PM EST
IMO if it looks copper wash, it is likely corrosive. Go ahead and enjoy it in one range visit so you only have to do the corrosive wash once; do not let any ammonia stuff linger in a chrome bbl.
Link Posted: 11/20/2003 1:16:57 PM EST
With a 1990 date, I would say about 75% chance it is corrosive.

Just clean with hot soapy water before a regular cleaning and it will be fine.
Link Posted: 11/20/2003 2:05:48 PM EST
Thanks guys. It's too bad that corrosive primers are cheaper to manufacture, otherwise we wouldn't have to deal with this. I have a muzzleloader, so it's something I should be used to by now.
Link Posted: 11/21/2003 11:19:48 AM EST
Corrosive powders (salted) are actually more stable over a variety of temps and storage conditions, which may be more attractive to the military than price.
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