I shoot the same things in those situations I do when it's open; .243, .25-06, 7.62x39, .30-30, .303 Brit, .300 Savage, .30-06, etc.
The idea of "bucking brush" with a bullet is complete horsechit. You shoot through holes in the brush, not through the brush itself.
Nothing more I can add to that.
When it's thick I will carry anything from a .243 - 45/70, all depends on the mood I'm in.
