You don't say where you are hunting and the normal/extreme distances you will be shooting. The old proven 30/06 will handle most any distance, has a vast choice of different types of cartridges, and will take any game animal that 99%of theaverage hunter goes after. I would use it and if it doesn't already have a quality scope on it, then topping the 30-06 off with a quality scope would be my main objective. I prefer a bolt action, but the semi should be OK.