My factory creedmoor has shot groups in the .1's in load development. In the end I settled on a solid repeatable 1/4" load. Bring your antique Mauser on....I have been reloading this hot rod for years. I have listened to, and read all the hype about the 6.5 CM, why throw a pu'nkin ball at something when you can shoot at it?
A good Mauser action and a good barrel can outdo a CM any day of the week! ( Granted, I am partial to Mausers), a 6.5 Swede properly loaded is more than capable of sub-moa accuracy, with a couple of hundred fps extra!