I tried it in my 6.5 Creed and it was really bad, around 2” at 100m.
I’ve also tried the CX hand loaded in 120gr and 130gr and both have been erratic (some good groups and some around 2”).
Not sure why, as in other cartridges I’ve found the CX good, but just can’t get on with it in 6.5.
Friend of mine has had exactly the same issue (his is a Tikka, mine is a Remmy with a Sassen barrel, so it’s not just my rifle)