The cartridge is popular due to it's inherent accuracy, ( the thing all 6.5's have in common), availability of quality off the shelf ammo, it's reloadability, and most importantly, it's efficiency. It produces very similar performance to other 6.5's but using less powder. This means, lower felt recoil, longer barrel life and less report or muzzle blast.
6.5 bullets are available from all major manufacturers in a wide variety of styles and weights from 90 through to 160 grains, giving you a lot of choices when it comes to reloading.
By the way, I do own and shoot a rifle chambered in 6.5 Creedmoor, unlike some of the other fellas giving advice on it here.

More than happy with it for all of the reasons stated above, (apart from the factory ammo, I have never used factory ammo),
It hands down out-shoots both of my 7-08's set up for the same task and is a lot more pleasant to shoot.

Also, despite the naysayers, considering the fact that the cartridge was designed specifically for the U.S High Power National Match, it has the runs on the board when it comes to winning at that and various other matches, ( e.g. 2011 Snipers Hide Cup winner and runner up both used it as well as two others in the top 10, this match is shot at varying distances out to 1000 yards), you won't be at any disadvantage choosing it to have a go at target shooting.
