Long time ago I took a 2 day class on shotguns and I have to agree with Clint: You need to be competent with it. That means pattern the thing first and remember what will it do with that particular shell of that particular brand. The other thing is to remember to always keep feeding the shotgun every break you have, I don’t care if it is 5 seconds.: Stuff shells in the thing.
My shotgun is for “repeal boarders” duty. Anybody outside and inside the the immediate perimeter of the house will have a bad day thanks to buckshot.