I have to choose the 30-06, but the 308 Norma Magnum has served me well
over the years. Accurate, reaches out well, and has enough "thump" at 500
meters to anchor tough game. EE.
303 british is my go to favorite round for hunting. ( So far it's taking all my BC big game,. A goat and 2 black tailed deer, and it will be coming on my spring bear hunt this year too)