Well I never got a single reply, but yesterday I found out a part of the information I was wanting.
The PPU 9.3MM 285 grain bullets to expand well on smaller animals. Now I just have to see what they will do on an animal of over 400 pounds. Maybe I can see that later.
Anyway, I went out with a friend of mine to help him. He is an experienced hunter, but he's now 86 years old and needs help with dragging and even gutting at times.

So...long story short.......he is hunting with a 6.8SPC rifle and had a new scope on it. As luck would have it we find out the zero is not holding well. A shot at a paper target today shows us the zero wandered over 10" left and 6" high at 100 yards and the gun with this scope was shooting well only 4 weeks ago. He missed 4 shots in a row and he is actually a very good marksman. I see this quite often with some hunters, but not him. It's very much an unusual thing to see this old man miss. So I tell him to fire at a small rock on a hill about 250 yards away while I watch through my binos. He does, and the hit is WAY off.

So rather then go home I get out my Husky M46 9.3X57 from behind the truck seat. I and he go to a place where I know the antelope are crossing under a fence and set up a makeshift blind about 80 yards off. It is only about 45 minutes and a group of about 30 antelope come over the rise and to the crossing. He's set up in a solid sitting position resting over my pack, which is thrown over the top of a stiff sage brush. One shot and the antelope drops like it's legs disappeared. The round was loaded with ball-C 2 powder and the load chronographs 2205 FPS at the muzzle. The hit is high in the chest about 2" under the spine. The exit is about 2.5" around. Resistance to this hit is not extreme with only one rib hit going in.
So I know expansion is good. Now I have to see if the bullet will hold together on heavier game.

I'll post a note if I find out this season.