Signs of non-corrosive ammo?

[mralberta]

Is there a tell tail sign to identify corrosive vs non-corrosive ammo (7.62x 39)? My buddy gave me a crate he has had for awhile. It's Norinco, says Non-corrosive on the boxes, but has this green ring around the base of the bullet head. The last non-corrosive I bought had a red plasticey ring around the outside of the primer.

Long story short, should I be concerned about the Norinco ammo?

Thanks.

 

[9.3mauser]

The ring around the primer is a sealant against moisture, nothing more. There's no way to destinguish corrosive from non-corrosive except for date codes in some cases, or what's stamped on the crate or boxes.

 

[CanAm]

If it says NC, it is

it is likely corrosive if:

made before 1990
wrapped in paper

 

[mralberta]

If it says NC, it is

it is likely corrosive if:

made before 1990
wrapped in paper

Thanks for the help!

 

[CZ_Brno]

If it says NC, it is

it is likely corrosive if:

made before 1990
wrapped in paper

I wish someone could make the guy in post #31 on this thread listen to reason.
www.canadiangunnutz.com/forum/showthread.php?796462

 

[CanAm]

I wish someone could make the guy in post #31 on this thread listen to reason.
www.canadiangunnutz.com/forum/showthread.php?796462

The above is a rule of thumb. It may well be NC. A simple test tells. I have not read the whole thread, but they may have tested it.

 

[Repro77]

Sorry if this has been answered before, but what makes it corrosive? Why would they have made corrosive ammo in the first place, price?

 

[CanAm]

corrosive ammo stores better over long periods, and, apparently, is more reliable in cold weather.

 

[HKMark23]

I wish someone could make the guy in post #31 on this thread listen to reason.
www.canadiangunnutz.com/forum/showthread.php?796462

Nothing wrong with a member, particularly a commercial one, expressing an opinion over a legitimate concern. You don't have to accept it if you don't want to. Norinco products are priced to be a terrific deal.

Norinco is not noted for consistancy or quality. It is very possible that there was a mix up of ammo lots at some point somewhere. If you use Norinco just assume it might be corrosive. FWIW we opened a crate of the older Norinco ammo to use on the range and it was filled with 12.7mm cartridges.

All this serves to do is verify Chinese industry's propensity for "discrete" pragmatism. In our industry we have learned (the hard way) to employ extra care and scrutiny when considering the use of Chinese products and materials. Chinese industry is indeed prone to substitution and/or the downright copy manufacture of "look alike", sub standard, substitutes. The trouble is, you never know when they're going to do it. One shipment can be fine, the next, from the same source, a disaster. I have witnessed examples of this "discrete" pragmatism in everything from high pressure hoses and fittings to tools, to chemicals, and even entire vessels constructed in China. I have no such experience with Norinco ammunition. Its Chinese origin is my only cause for caution.

 

[chadeech]

if its bulk and in a crate or wrapped in paper its corrosive
if its in a box and says on it non corrosive then it isnt