Right off I thought of a Win. M 100 in .308 (which may not be too hard to find) a carbine so much the better. I have one in .308 and one in .284 win.
But the Ruger carbine .44 mag. would also be good. (I have always had a yen for one)
A 12 ga. slug gun would also work. I have a Rem. 1100 with a hastings rifled barrel on it. With a 2.5 power scope it shoots Federal sabots into 2 3/4 inches at 100 yards.
I also have a Rem 7600 pump in .35 whelen and a Savage 99 in .300 savage.
So when it comes to "Bush guns" I got it covered.