Not sure what they are made of Pork but they are prolly not recomended by your doctor.
You have the shaped charge warheads of course but also sabot type thing.
Im a navy guy myself so im not that into army stuff.
Ill see if i can find the article on our military website and who makes the rounds....think it was Rheinmetall of germany or something.. Im guessing there are several brands since ammo is a huge industry.