You will get two different stories on it. I have one and love it. I took two nice fat does with it this past hunting season with handloaded 110gr Pro Hunters. It is a very good rifle for hunting out to 250-300 yards. Many use it for coyotes and feral hogs. It is a little more expensive to shoot than the .223 (in normal circumstances) but no more expensive than most other hunting calibers. Roughly $1 per round for factory loads. If you really want to get to know the 6.8SPC I would recommend going to
http://68forums.com/forums/content.php where you will find some good people and a wealth of knowledge on the subject. Congrats on the new rifle.