50 BMG, Light blue over yellow, SL 53

FB group having a hard time ID’ing the item.



Ordinarily I do not open links to FaceBook accounts, but in this case I gave in and tried it. Didn’t work!

Anyway, Blue/Yellow indicates a high-explosive-incendiary. Not something that a novice should be playing with. Assuming it is real and not a dingbat.