I'd grab a can of varget and a bunch of 165 grainers and then figure out which one your rifle likes best.

For what it's worth I just shot a running doe in the guts and liver. Found the thing to boot! One small hole in and a really 1 inch hole going out. Bullet was a 165 grain hornady interbond. Would probably shoot .3 inch groups if I could hold the rifle well enough.