To be honest, ANY kind of 12 ga ammo will work.... even light loads. Hell, you are shooting inside a house, the noise and flash will protect you. If anyone is still around to bother you after the first shot, you are in trouble.... I have always had a 12 ga. to prop up against the bedroom door while we exit thru the bedroom window... we can land on the A/C compressor and not break anything. I send my wife first (just to be sure).

J.