I wouldn't say you're totally off topic if referencing the Atip's terminal performance, I do believe there is currently another thread going about that.
I'm also gonna have to disagree with your analogy. I've seen many a living creature shot with a FMJ bullet and wish they created that much damage. Also seen several hit with a projectile that did not expand as it should and acted like a FMJ. If you are lucky they will tumble, yaw, or if they strike bone it will cause a lot more damage (deflect, tumble, yaw, secondary projectiles). Very unpredictable and inconsistent performance. I would expect more along the lines of field tip performance (with maybe a little temporary cavity...maybe) nothing like a broad head. Not exactly what I want to hit a 600+ lbs bull elk with 1000 yards across a canyon. That's like stabbing someone with an ice pick. I hit a bull at a little over 800 yards with a .408 Cheytac and what is advertised as an expanding high BC (long range) hunting bullet. The hit was a little further back than planned (rear of lungs) but still should be lethal, and he was on his feet 4 hours later when I made it across the valley. If the bullet would have performed as intended, it would have been a relatively quick kill, instead I had an animal that was still very mobile and capable of making it into a very bad place. Lesson learned, no more ice picks!