Some BG gets shot on CSI: Miami tonight. One of the CSI's sees a single entroy wound and multiple exit wounds and concludes it's from a "fused alloy round". As she describes it, it's an illegal round that is made from fusing different types of metal together. Passes through body armor but the internal heat of the body causes it to fragment.
Google didn't show anything useable. Is this some total TV hooey, or is there some kernel of truth to it?