I voted for "other" and my choice would be the 243. Thats my go-to varmint rig for pdogs, jackrabbits, coyotes, etc. It also doubles nicely as a deer/antelope gun.

If 243 is out of the question the 223 would be my second choice, a guy can never have too many 223s......Just ask me I think I have around 4 of them right now.