I had the same general theory when I bought my .308; didn't work out so well. Target ammo like black hills, hornady A-max, Federal GMM all shot very well. Hunting ammo was tougher to get the same accuracy. Gameking was the best I tried for group size, but your experience may vary. No surprise, only the most expensive hunting ammo shot like the target stuff in my rifle. Cost and mixed results led me to reloading. Turns out it's not all that difficult to get sub moa performance out of a hunting bullet. I seemed to get the best results with Nosler Ballistic Tip in my limited experience, so that's what I'm going to stick with. The bullets aren't cheap, but again that's offset by reloading.
NRA fo Life Member