As some of you know i started a post in another section about the .308 warbird. And i have been browsing magazines and internet articles, and some of those say the super magnums are not needed. like for example i want a gun that con consistantly hit silhouette targets at ranges of 500 to 600 yards. i can hit them with my .270 and 30-.06 but the drop is pretty bad at those ranges. Are there smaller cartridges such as the 6mm-06 that will perform just as good at long distances?