There is some more of this floating around the surplus scene.
It looks like regular 7.62x25 but it is loaded to substantially
higher pressure and should only be used in CZ52's and not
Tok's or C96's ... This is the round that the CZ52 was actually
designed for and will send an 86 grain bullet to over 1500 fps.
I am posting this from work, but when I get home I will post
what is on the HeadStamp of this bunch of ammo so you may ID it.
Again, this stuff WILL be dangerous to fire in a Tok or C96.