No. It is closer to the old "Everlasting" rifle brass with a steel head.
My nephew is flying down kodiac in May for grizzly bear on a tag they cancelled over covid last season. I'v been passing on my guns to nephews so I don't pass on they get sold. I've gifted my 338 fed armalite ar-10 to him. It's actually a great short range bear gun. I've knocked down moose and bear with that gun and it's always nice to have a 20 rounder; just in case.