I was looking at getting an AR style rifle for hunting/ culling hogs and coyotes. I was looking at DPMS and Rock Rivers. The calibers I was looking at were the 6.8 SPC, .308, and of course the 5.56, but I found something interesting from DPMS. They offer several other calibers like the .260 Rem, .204 Ruger, 243, and the 6.5 Creedmore. Out of the calibers offered I personally like the 6.8, because it has better ballistics than the 308, but what I would like to know is how would a .260 cycle through and what are your recommendations for my first AR.