I will tell you that a carbine with soft point ammo is very bad Ju Ju for varmints with two or four legs. It will put some large holes in their poor bodies. But again it is a penetrator. I have seen carbine soft point rounds go into the armor plate from a Battleship and penetrate a good inch and a half into it. FMJ and 30-06 AP just bounced off the backstop. So if your closest neighbor is a good mile away or so then use the carbine or the AR. But if your next door is only 75 feet away then think twice about it for sure as even a good handgun round with go through walls with ease. There really is no perfect answer.