I shoot all kinds of stuff. I have hunted with, and killed whitetail with the following oddballs.

6.5x55
7.5x54
7.5x55
7.62x54R 38WCF, BP/cast bullet loads
.45/70, BP, cast bulets
577/.450, BP, cast bullets

I don't really consider the 6.5x55 an oddball, but I see very few in the field.