Quoted:
I work in the auto manufacturing industry and we are contracting "certain things" built out of our proprietary light weigh armor (sorry but I cant specify). This armor project is new in our regon (North America) but extensive in Europe. The project manager doesn't know shit about bullets & armor and I am trying to steer him in the right direction.

Can anyone point me towards some documentation on different types of bullets, armor ratings or anything related?

He also mention something about fragment ratings?

Much appreciated