A .270 Winchester with 150 grain slugs. Of course, if you want up-close-and-personal, an 870 Remington cut back to 20 inches and loaded (unplugged) with alternate buckshot loads and slug loads. But, you can't hardly beat the venerable .30-06 loaded with either 200 grain or 220 grain lead core bullets. I'd opt for the 220 grain, myself.
