I am somewhat familiar with firearms, but i have a rookie question for ya. First off, i was recently at a certain rather large sporting goods store and was browsing over the shotgun selections. In one particular area amongst the shotguns, they have it labeled as Slug Guns.......Now here's my question. Are some guns designed specifically for slugs and not shot? For Home Defense, i would feel comfortable with a slug than some shot flying out of my barrel towards a BG. Make sense?