That's one thing I like about the 30-30; it's pretty much a short-range rifle. In the hands of one of the many morons who doesn't fully know what he's doing, at least you know its ballistics will limit the damage radius. [Note: I am not fond of hunting in "brush" if that means you cannot tell what is behind your target.]
I grew up hunting in New Mexico and ended up in Virginia. Both VERY different. Most of my hunting in VA has been from tree stands. The ground is what’s behind your target when hunting brush from a tree stand.