I've owned and shot an old Belgium Browning in '06 since 1970 and another in .300 WM since '75. They are vastly different critters in performance depending upon the powder and bullet selection. Inside 300 yards one is as good as another, inside 100 maybe the '06 is best, but beyond 300 the magnum really shines. I suppose I like the magnum best since I can purposely take lengthy shots with assurance of a one shot kill. Those shots maybe the only ones I will get for the entire season and I would not attempt them with my '06.