Shooting a 8,2x53R I use 200gr Nosler AccuBonds.
The factory velocity is listed @ 2525 fps and that is on the button over the chrono.

The bullet is .323" and at that velocity very close to the 8x57 Mauser.

I use the gun on both light and heavy game from roe to wild boar to whitetail to moose. I also have used it on safari where I took Gemsbok.
I sought a bullet that will open up on light game but will also penetrate and hold together on heavy game (moose and bear).

I cannot guarantee you an exit on elk but the performance on game has left nothing to desire, and the accuracy is superb. For a guaranteed exit I'd go with the Partition.
The AccuBond is very reasonably priced.
In fairness, I have loaded other bullets as well but this is the only one I have used on game besides old Sako Hammerheads.

- Lars/Finland