do not own a 30 cal. rifle, don't have a desire to, have had them before, hunted with them, wasn't impressed.
the 7mm/08 will do anything the 308 can do, with less recoil, the 7 mag will do anything the 30/06 can do and then some, for just deer hunting the 6mm's or a25 is all you could possibly need.
RR