I have gun ADD. I like the AR platforms, but come to realize I like them in the sub caliber category, i.e. .223, .300BO, 6.8, 6.5... I have a high end AR10 that I really cant shoot well. I have it at a local gun shop and the owner said that she'll trade for a custom glock and a nice 6.5 grendal (she has to order the grendel). I already have a long range .223 AR and a nice hog/deer .300BO AR. What would be a good 6.5 grendal recommendation for a do all type rifle? Looking for the balance between sleek, somewhat light, and long range precision (500-600 yards on steel).