8mm ammo heastamp identification

I am hoping someone can help identify the origins of some 8mm that I have.

8mm tracers are head stamped FN 69, packed loose in 100 round cardboard boxes (factory not just a box). I assume Portugese.

Regular ammo in 80 round boxes that came out of a tin can from inside a wood box with hemp rope handles, head stamp FNM 70-25 all in 5 shot stripper clips. Again, I assume Portugese.

8mm with a silver projectile head stamped 48 PS star 5. This, I have no idea.

Thanks in advance.

FN- Fabrique Nationale (Belgium)

FNM- Port.

PS- I should know, but it slips my mind, Italian?

The PS are Czech post-war milsurp ammo.