RE: browning a-bolt
I hate to break everyones bubble but there really ins't any practicle advantage between most hunting cartridges. From the 260-30/06 anything with similar bullet weight will do pretty much the same as all the others. Small differences in energy and tradjectory aside the game will never know the difference. I doubt that any of us can hold steady enough to evn use a 3" difference in tradjectory at 500 yards.