I've witnessed about a dozen elk, Barbary sheep, and oryx shot with SMK. From 175 gr in 308, 200gr 300 WM and 250gr in 338 rum. Most all penciled with little expansion, and just about all passed through. We recovered all animals, but had some intensive tracking jobs one one or two. Most all ran a ways and didn't appear hit.
Great accurate bullet but I don't like them. My buddy who I watched all these continues to use them. He likes them and has never lost any game with them. I think there are better choices for hunting.