On hitting moving objects with a short bbl'd shotgun. With a little luck it can be done. The sheriff I worked for had a M-12 Win Riot, quail were in a world of hurt when the covey rose.
I traded in to a like new M-12 riot years go, I hunted with it for several years. The pattern opens a tad bit sooner. At rabbit, duck and squirrel distance one needed to lead a little further so you did not put as much shot in the body.
The stopper in using them for hunting is the number of rounds the riot holds, in many states a plug restricting the magazine to 2 rounds is required. Some are not easy to change out.
The short bbl really has nothing to do with hitting at normal shotgun distances. If you are shooting waterfowl at 50 a long bbl with a full choke is better.
Remington once did some testing, a shotgun bbl over 25 inches does not gain an more velocity and will pattern or shoot as well as the long bbl'd ones with the same chokes.
Many folks have a "riot" type shotgun for the home defense weapon. #4 pheseant loads or # 4 Buckshot is a better stopper than a hand gun and will not pentrate like a 357.
Bill Jordan once said something like this, buy an improved choked gun, use it on everything, it will make you a better shotgunner. I know the quote is not exact but it's been perhaps 40 years since I read it.
I think many of these guns get fired at informal target plinking like tin cans, hedge apples or hand thrown targets, if the owners are not doing this they may fumble with the gun if ever needed against zombies.