For all Lawful Purposes...
I spend a lot of time in the woods, scouting, exploring, moving cameras and tree stands, maybe just hiking with my kids - and can't be carrying a rifle or shotgun. So of course i have a pistol on my side. I'd much rather have a shotgun - i have a hard time imagining ANYTHING that wouldn't stop if hit in the face with a couple 400grain, 1900 fps hollowpoint copper bullets, certainly nothing where i live in southern New England - but during closed seasons, carrying that "hunting implement" would be prima facia evidence of poaching, according to our laws.
So i carry my .357 OWB and a couple speedloaders, all filled with Hornady Critical Defense loads. Since my state doesn't allow hunting with any type of pistol, it is clearly only for self-defense. And it'd certainly do the job, if god forbid it ever became necessary.
Still rather have a shotgun.