Polish 7.62x25mm -- corrosive?

[GunsNotPuns]

Picked up a box of Polish (what appears to be) surplus ammunition. Box of 70 rounds. Seems to be brass cased. Anyone know if this stuff is corrosive? I imagine so but one never knows...

 

[Kaboose008]

It's Berdan primed. At least, any that I've come across. I'd treat it as corrosive for that reason alone. I tried to research that ammo myself about 1-2 years ago. I found that most treated it as corrosive, never really stating why or if it was in fact corrosive ammo.

 

[jonnyc]

It is 100% corrosive, no doubt about it. But it is really great ammo, so just clean accordingly.

 

[GunsNotPuns]

Well, so much for weaning myself off corrosive ammunition. Good to hear it shoots well though.

 

[CanAm]

any older combloc caliber ammo is corrosive unless it says otherwise on the box

 

[Mobular]

...and it's most likely copper washed steel cases. Try a magnet on one.

 

[zuke]

Alway's treat that surplus brass as corrosive, cheaper to do it that way then end up with a part's gun

 

[jonnyc]

Polish Tokarev ammo is brass-cased, Berdan-primed, and corrosive. The case material (brass, steel, plastic, aluminum, etc) has no bearing on whether the priming is corrosive or not.

 

[kablam]

Pretty sure it's corrosive.

You can always do the "brite nail test" on it though:

https://www.youtube.com/watch?v=B5A0aheehk4

 

[jonnyc]

No need to test, it's been done. To restate.......it is 100% corrosive.

 

[GunsNotPuns]

...and it's most likely copper washed steel cases. Try a magnet on one.

It's brass cased. I was a little surprised by that.

any older combloc caliber ammo is corrosive unless it says otherwise on the box

What's Polish for non-corrosive?

 

[CanAm]

What's Polish for non-corrosive?

non-corrosive

 

[Mobular]

Nonski corrosivniuk

 

[GunsNotPuns]

non-corrosive

Nonski corrosivniuk

I like Mobular's answer better

 

[.223Rem]

I have some of this. It's great ammo. Jacket is a bi-metal but the bullet is lead. A magnet will stick, but it's soft enough you can cut it in half with a pair of side cutters. You can use at any indoor range willing to listen to reason after they stick the magnet to it. (which is about 50/50 in my experience lol).