I recently built a 6.5 CM also. On my second range day with it shooting test loads,I found a fantastic load using Berger 140gr Hunting VLD's. The group measured .122" center-center at 100 yards.
Savage Varmint Action - 1.5lb Target Accu-Trigger
NSS trued barrel nut - recoil lug
E.R.Shaw 26" Varmint contour barrel
Weaver 20moa 1pc rail
The Choate Tactical stock,Sightron SIII 6-24x50 MOA-2 scope,and Burris Signature Zee rings were borrowed from my 10FCP 308,until I get the Manner's stock and Nightforce NXS scope to replace them with.