[eno_]

SAMs are usually not kinetic energy kill missiles. That's a Star Wars technology because you have issues like missiles moving faster than explosions propagate. (Yow!) SAMs use shrapnel to increase their kill radius, and usually explode outside an aircraft. I'm thinking these pellets are from a SAM warhead. The alloy is probably unusual enough for an expert to tell what kind of warhead.

[Rokke]

Riiight.. Orange colored, non-metallic, transparent, 5mm diameter beads are being used in SAM missile warheads to blow aircraft out of the sky. Is this some kind of joke?

[Poohbah]

SAM shrapnel is considerably larger than 5MM diameter, because something that small would bleed its kinetic energy away very quickly.