Modified for slugs, you can use the slugs in all but the super full, (turkey), choke. Put the long barrel in the back of the closet, the short barrel will do anything you want to do unless you are into goose hunting. Save the long legged shells for zombie day and buy a case or three of 2 3/4" in your favorite shot sizes. I suggest some #7 1/2, #6, #4 and 00 along with about 100 rounds of slugs. Try a few different kinds of slugs to see which shoots best in your gun and then load up on that kind but in my guns at least brand and type of slugs make little difference out to 60 yards so I went equally with Remington, Federal and Hornady, whichever was on sale that day.
Good intentions will always be pleaded for any assumption of power. The Constitution was made to guard the people against the dangers of good intentions. There are men in all ages who mean to govern will, but they mean to govern. They promise to be good masters, but they mean to be masters.