Early season, its all ambush, so very little walking or glassing as I know the area well. Call it two miles in, two miles out directly to water sources, trails, saddles etc.
Late season, when they're bugling, If I don't hear them from my tent, I tend to climb a hill behind my tent where I can get a good vantage point. I glass from there and normally can find a small herd to drop back down on so that could be a mile or two at best.
Other area, wake up from tent, walk 1/4 mile to a look out and wait for the first bugle, and then I move from there. That could be a 1-2 mile day as well, but some elevation changes in there.
The common them here is I know the areas so I'm not walking just to walk. I can check known areas that hold elk in a circuit and if nothing, do it again the next day as I missed them.
Key for me is being able to see. I don't know how guys can hunt sold timber, worse yet, timber with a mountain of deadfall. If they're not talking, it would make the hunt very, very difficult.
.Edit....... One tip I can give you on your mileage is that elk bugle in mid September even in the heavily hunted areas. I always say, keep walking until you hear them. If you don't hear them, keep going, somewhere they are making noise.