Thinking of buckshot?- does anyone make 'tungsten' buckshot nowadays with all the non-toxic shot laws?

I'm thinking primarily about those US military 12 bore loads using 'hard' shot - the 7mm load for instance - #3 or #4 buck - .28" in tungsten, supposedly went through an issue helmet at 150yards. They initial speeds were in the 1,800fps range, but at 2,400fps to 2,600fps, that's some lethality! Fun testing, too.

I am not suggesting any illegal use - just the old article I remembered from G&A or some other magazine came back to me when I saw those high speed buck loads, Ed.