I truly don't understand threads like this.... Of course you can kill an elk with a 6.5 Creedmoor. You can also use a 6.5 PRC, SAUM 6.5-284, 6.5(you fill in the blank). You can also kill them with a 260, 243, 270 308 etc etc. You can kill them with a bow and arrow too, so anything more powerful...