Their as good as it gets for shooting. They were made to drive deep in large game, Moose, Elk, Bear, ect. They will pass threw deer w/o expanding at all. They are good for another task, that being, glass.
Wish yours were in a Yellow an Red box I'm getting low of those in .308 win. I still have many in 30-06 though if needed.
They still make 150, 180gr St. Exp. but they have an aluminum cap, like yours.