This is a great thread for me. I am starting to look at HD shotguns and was leaning towards a Mossberg 590, but this thread has me thinking about semi-auto. My only concern with a semi-auto is a runaway gun. I have two small children (and one on the way) and don't want to worry about an extra round going off or it accidentally firing. I am also wondering about the durability of the clips for a semi-auto shotgun, as I'm not planning on shooting it often. Do they wear down or do the stay springy for a long time?