Re: 6.5 Creedmor or 6.5x47 Lapua?
First and foremost
The 6.5x47 will match or beat anything 260/CM can do in any weight bullet, listen to the guys who reload for it not a Hornady sponsored speculator
brass is nuke proof, 123 scenar max load 43.5 RE17, ZERO ejector wipe etc
pig gun 20" barrel 123 scenars @ 2900fps 42.9 re17
F class rig...
Yes i built a full blown match rig on this case because i have several local shooters running 2930fps 139scenar 28" barrels
Mine will have a 31" barrel and should according to others that run same barrel length 3000fps, thou most run 2950-2975fps
Thats same fps as 6.5-284 drivers run
Big Fan of AMAX bullets especially 123Amax, good on paper n kills shit DRT
So as performance is a non issue consider all 3 equal, thou 6.5x47 can run higher PSI thus it will have edge
discard 260 IMHO, unless your going to push shoulder back
http://www.6mmar.com/Super_LR.html
then ya have pert near a 6.5CM but better/more brass selection