[yarddog]

One advantage of many auto shotguns or pumps is their mag can be replenished from loose rounds in pockets or a bag. Shoot a couple, load a couple.

Keep doing it. There will always be enough in the mag for those times when you need to fire more than 2 or 3.

Same thing is true for many lever actions.

I guess if you need to shoot dozens of rounds before sticking a new mag in, then the ARs or AKs might be better.

[riverrunner]

Having use both professionally.

I would grab an AR over a shotgun for most serious work.

But a shotgun are very useful in some situations.

[wastoute]

Or you can load the mag with buck and keep slugs in your pocket if you need a slug.