The last time I was at the range with my 5R in 6.5 Creedmoor I shot some inexpensive Federal hunting ammunition.

https://www.federalpremium.com/rifle/non-typical/non-typical/11-65CDT1.html

It performed very well, 1/2 moa at 300 yards when the wind would let up.

I have some accurate 308's, including a 5R, but this 6.5 Creedmoor looks like it'll shade all of them.