The simple, sad answer is....not much

In my youth I hunted and shot trap

But I am not much of a hunter any more

I have been resisting the sporting clays addiction (so far)

And as far as defensive uses, I am afraid that I don't see much that a carbine will not do better...I see shotguns as a "niche armament" with a smoewhat more narrow engagement range than other long guns

But don't get me wrong....all firearms are intrinsically good

we all need more.....lots more

And I still practice occaisonally with my 590