Ive only shot one whitetail with a 90 grain ballistic tip. It drops deer faster than my 35 Whelen wih 180 graim hot cores. Slammed to the ground at the shot and never moved.
Whats wrong with the 108g ELDMs? They've got a pretty track proven record for killing coyotes/antelope/deer. If I had to use my 6 creed for deer, that's what I would use and wouldn't feel bad about it all. They've slammed every dog I've shot with them and left nice size exits. You said you wouldn't mind some fragmentation, than that's your bullet...No need for a Nosler