i agree w/ paul, stay away from the light fast sabots, as they need a really fast twist barrel, i shoot an 870WM with a hastings barrel. ive tested most all slugs on the market (non foster slugs) and found the best to be 2-3/4 and 3" buckhammers, and 2-3/4 and 3" hastings brand slugs (basically the same slug, full bore heavy bullet with an attached sabot) but any medium velocity full bore slug should shoot satisfactoy out to atleast 50yrds