If you are after something for shooting light bullets, I would not use the Valkyrie. I have seen no advantage in it. If you want to shoot the heavies, that is where it is better. Only issue is that you need a 6.5 twist for the 90 gr and just about everything is a 7 twist. I have not been able to get the 90's to shoot good in a 7 twist AR. Most people have the same issue. The big hype for it was the heavies and shooting long distance. Long distance means nothing if they wont shoot accurately. I have been able to shoot tight groups with the 80 grain. As Shane said, buy lots of brass. I am also finding the primer pockets start going bad as soon as 2 loadings. Some last longer. After 4 loadings, I have lost 50 of the original 100 pieces I started with. If I shoot the barrel out on this one, I will not build another. Not impressed with it right now.