I shoot a rem 870 express mag with a Hastings slug barrel and a leupold shotgun scope. I shoot the 3 inch Buckhammer slugs they are 600gr. Pros: shoots a really big bullet accurate out to 125 yards or so, thats about it besides it a really cool gun. Cons: It really kicks hard, a shotgun trigger is not like a rifle trigger so from the company its kind of hard to get used to it because you have to pull it so much harder, slugs are expensive. I really like mine when hunting with it, but sighting it in I recomend a Caldwells led sled or something similer.