Nice moose DM, I guess the bullet did its job 
. I just dont have the "engineering" mentality to disect a bullet, maybe it is because I havent had the need to do so, I have only recovered two bullets from deer and elk one Nosler Partion and one Speer Hot Core (both out of a 7mm Mag), both mushroomed perfectly, with the core of the Speer being loose but still in the jacket. Maybe some day (if the army will finally send me to Alaska) I can try the bullet out on an Alaskan moose.....but then maybe I will use my .45-70 with cast bullets....or......geez, I own too many rifles. 
Chief
Chief, i use to design/swage and sell bullets for big game. I've always had a huge interest in bullets and how they react when they hit something. Back before everyone was makeing bonded core bullets, there was pretty much only me and Jack Carter selling bonded core bullets, and i took the time to take apart every different designed bullet i could get my hands on and see what made it tick. I also had a test box and lot's of big game to test them in too...
Anyway, for any cup/core bullet you want to work properly on the bigger big game, on something "other" than a perfect rib shot, you have to have a good bullet design, with good jacket material designed to somehow "lock" the core to the jacket, or a partition to stop bullet expansion. If you don't, when push comes to shove, the jacket separates from the core, and they both soon stop penetrateing. It's just that simple!!
All the gimmick names like "innerlock" and "coreloc" don't work in the above case, you really need to bond the core in, or use the NP design, as they aren't "gimmick", and do work.
I stand by my origional post on Gran Slams.
DM
