Not 70 yet, but lightweight is the way I'm going these days. My rifle is either on my shoulder, or more often carried Indian carry in the crook of my left arm. A 9-pounder gets shifted around on the 3/4 mile walk to where I usually hunt, but a 6 or 7-pounder stays in one place the whole time, and is easy to one-hand by the grip while using the other to part brush etc.
Still have a couple heavy ones, but they don't get out much. Even a .270 is a bit much for our scrawny deer.
