38 S&W Rounds Corrosive or Not?

[Tbolt]

Hi All

I picked up a bunch of 38 S&W today. 93 rnds

Mixed Headstamps

W.R.A. Co.

Dominion

D.C.Co.

Rem-UMC

R-P

I am trying to figure out if any of it is corrosive.
Been reading what I can find and hard to say for some of it.

R-P is new so it is ok

But the others am not sure.
Any help is greatly appreciated.

 

[jonnyc]

I would bet they're all non.

 

[Tbolt]

The D.C.Co is wartime production, and the WRA Co i have no idea when that was made