I shoot ELD target for steel. There is an ELD-X hunting bullet. BC is very good with both.
I have not used the X on game but it is supposed to be a good bullet.
I believe Berger makes a hunting bullet with a high BC.
Son in law shoots them and they are very accurate.
H4350 is the most popular powder. RL-17 is what I shoot as 4350 has been hard to find around here.
We shoot the 140 gr bullets at around 2750=2800.
I think you will like the Creedmoor.
There is a website devoted to the 6.5 Creedmoor that will answer most any question you may have. Just search 6.5 Creedmoor.