Nobody has mentioned 'bullet heads' yet.......
The concept of expanding and non-expanding ammunition continues to be lost on me. It makes no difference- i don't want to be shot with a .44 magnum, .223, or whatever be it expanding or not, either way the damage will be significant. Unloaded lead shotgun slugs aren't controlled and i most certainly think they are worse than any bullet (also a hell of a lot easier to load than metallic cartridges- with just a drill attachment)