8x57 mauser, what a great cartridge!!!
I shoot a rimmed version of it, and although i've not taken the huge amount of game with it that i have with other rifles, i have taken moose, deer, and bear, includeing a 8 point and a 9 point (white tails) this fall.
I hand load 200 grain Nosler partitions at just over 2,500 fps, and they shoot great!! I've used them on something as small as a coyote, on up to a decent size bull moose, and they worked well on both size animials.
This round with Noslers kills all out of proportion to it's size!!
Opening evening 9 point white tail,