I picked up a Mossberg 500a Slugger in 03' because in North Carolina most Game Lands are Shotgun only. I topped it off with a Simmons 44 Mag 3x10 scope. Switched from Lightfields to the Winchester Partition Gold Slugs. The Slugs are 385GR NP's and are deadly at 2 inch groups at 100 yards. I suggest sighting in your cannon with a cheaper sabot slug type then check and see what the Partition Golds are doing. They run 12.99 a box(5 ea.) but they are worth it. If you aren't going to be shooting over 100 yards I would use a Slug gun, with the 385 grain and the 265 grain 20 ga you can't go wrong, and the best thing is that you will spend less time trailing after you throw that subsonic brick at em' ENJOY!