700 stainless drop mag in 270win was the first rifle I bought for myself and still a favorite. I put in an old McMillan stock and added a Timney trigger. I gave the stock a paint job this summer (the original tupperware stock was stiffened, foam filled and painted first as a test case).
I added a new Trijicon Accupower and re-sighted it in. It shoots marginally well.
I got a Alamo Precision 700 custom in 270wby here last year and it is a hammer with 140 ABs and 130 partitions.
Might do a 270wsm fast-twist next.
I think the 6.5CM is great, too, but I love my 270's. Mine is a Barrett Fieldcraft which is a great combo with the Creedmoor. For whitetail hunting, I'm not sure that there is a better option to start a kid with than the Creedmoor, either (mine started with the 243 but I'd rather use 120-140 gr vs. 90-100 gr for WT).