Headstamp ID Needed

[Lambo]

I have some expended Brass, 30-06 marked PB 74 or maybe P8 74 & has no visable Primer Crimp. I believe it to be South Korean Surplus. From what I know some of this is corrosive & some isn't.

 

[Khornet]

It's probably

PS for Pusan arsenal in Korea. They have a primer crimp, as you'll see if you try to reload them. PS is non-corrosive.

The other Korean brass is, I believe, KA, which is corrosive.

I've reloaded lots of PS brass with no problems.