Remington core-lokts? I've used some of those in an 8mm Mauser on a couple of mule deer, and control-shooting wild hogs.

No major bone was hit on the mule deer, so the bullets passed through. On the hogs, I know bone was hit: when I could, I aimed through the chest cavity at the opposite shoulder with the intention of hitting bone. As I recall about half of them exited. The ones I bothered to recover showed typical expansion, with some fragmenting when the ball joint was hit "just right".

I wouldn't hesitate to use them on elk, but I'd want something more-stout for moose.