That may be but hornady does make a heck of a good box of ammo. Better than what you can find for the 260. And if your store doesnt have any its not a big deal to order some because everyone has it. I think that you will see the 260 go out the door and see the Creed take its place. The Creed is already taking the 260's glory..... may be wrong but its just a hunch.
Since you insist on making it a battle of the .264s, neither one will ever get the "glory" that the 6.5x55mm enjoys and deserved ... it's been around longer than the .30-06 ... and it's still going strong after all these years.
6.5 Creedmoor (produced 2008)
.260 Remington (produced 1997)
.30-06 Springfield (produced 1906)
6.5x55mm Swedish Mauser (produced 1894) lightbulb
Now let's stay on course and help the OP. gun)