I firmly believe in a sling on my HD shotgun.
Again, my opinion, albeit polarized in the opposite direction compared to some posters in this thread. Why? Because I found out personally that it can transition from an inside gun to a outside (aka bugout) gun rather quickly. Like when the sheriff's department goes through your neighborhood telling you to evacuate as a Category 5 hurricane like Andrew or Dennis approaches the barrier island you live on. Oh, by the way, he ain't sticking around to see what the looters do, either after the evac or when the all-clear to return is sounded. Or it stays on your shoulder as you're waiting for the sheriff's department to arrive after you just scared off a home invasion robbery attempt in a bad suburb of Sacramento. (Ask me how I know...)
My HD scattergun is my first-response gun. It handles just fine through the house-clearing, thank you, although I do have a 696 or Officer's ACP nearby, and an AK and AR. Snagging on stuff while moving through the house? Ok, sure. How
loose do you have your sling when the scattergun is at ready? And what kind of home decor grabs at your sling and doesn't grab a quickly-moving
you in the process?
A neat trick - ever notice how a cheap WWII-Korean War USGI web canvas sling can go from semi-taut to shoulder-ready in the wink of an eye? You can work the forearm and maneuver through the house while it's still fairly tight, and still hit the buckle release to loosen it up quickly for carry:
And, if I
do run out of ammo, there's always the bayonet.