These cases (new to me) have an aluminum base and an alloy upper. Video also says it lasts 2.5 times longer, its stronger, slicker, and is magnetic so clean up is easier and faster.
One of the Hooligans has that for 9mm, I think. It requires special dies to reload, but he said that picking up the spent brass was very easy with a magnet.
I wonder what happens if a nickel plated case gets mixed in with this alloy stuff, one doesn't notice lack of base, and it goes through a sizing die? They look different enough to me for this to seem unlikely, but lots of stuff happens when processing spent cases in volume.