To date, lots of clay and paper, a variety of reactive targets. Watermelon past it's prime + (freezer x 72 hours) + buckshot = fun. <img src="/images/graemlins/smile.gif" alt="" /> If I'm meat hunting, I'm looking for mammel as a rule- not a big fan of poltery- so I'm using a rifle. I hope I never have to shoot another human. Ignoring the psychological issues, I hate dealing with lawyers.
Actually, for home defense, I don't like shotguns. A high speed, light weight bullet in .223 actually pentrates less building material than buckshot (someone in Nevada did a study in the early 90s, and the results have been confirmed by a few other groups), and since I'm pretty rural, I want something that can go past 50 meters. I have a Mni-14 for that, with a 20 round magazine with 10 45gr softpoints on the top, then 6 22109s. By that point, I figure I'm going to be out of the house and shooting at a car, or someone behind a tree. Last two rounds are tracer, telling me to get my butt back to the house and the mag pouch in the front closet.
To me, the advantage of a shotgun is that it can do things nothing else can. If I was to become more urban, I'd switch to a pump 12ga with rubber shot in the tube, #4 buck on a side saddle, and slugs on a buttcuff. But where I am, that can stay in the locker.