I really like the 6.5x55 and the Swedish Mausers.
I have also hunted in the deep brush in the PNW coast. For that the .30-30 lever gun is the way to go.
It's relatively light and short, which allows you to carry it more easily and take quicker shots.
You can hunt in the scrub with a bolt action. I did that to. It just means toting a couple more pounds and getting used to shooting the thing.
So where are you hunting?