The big thing about the 6.5 Creed is its ballistic coefficient. It shoots flatter, but it also has better wind resistance than the .308. It's more popular among precision shooters, but it does have slightly less terminal performance than the .308.

http://www.accuracy-tech.com/6-5-creedmoor-vs-308-winchester/

The Sig 716 DMR in 6.5 Creedmoor Was just announced at SHOT show. I only know because it was in a video they had about the Sig MCX one-stamp integrally suppressed upper receiver that they also show-cased (if I didn't already own one, I might go that route, but they have a 6.75" barrel, and I really like 9" for my .300 BLK). 

Right now I carry a Springfield XDM in a 9mm. I fell in love with the ergonomics of the grip and intuitive safety system, along with the fiber-optic front sight contrasted by the white rear sights. It has a 19-round magazine. Throw another one in my pocket, and I'm basically prepared to handle whatever comes my way. My next handgun purchase though (if it's not the Sig P365, because concealing a pistol with a 19-round magazine is a pain) is going to be a Sig Sauer P226 Tac Ops. I love the trigger feel of the double/single hammer-fired system and the de-cocker, along with the amazing way the grip feels in my palm and the four 20-round magazines that come standard with the pistol. If you can't tell, I have kind of become a Sig fanboy.