I am about to start ordering parts for my 6.5 Grendel build. I just want to know personal opinions about light and heavy barrels, and which one seems to be more beneficial. I know the heavy will reduce some of the recoil, but outside of that, I don't know. I am going to order one of Alexander Arms production barrels. I don't see the need for me to invest in a Shilen barrel or something of that caliber. The gun will be used for mainly for pasture fun with the occasional hog or coyote hunt.