Yep. At the muzzle fired from a 16 inch barrel, a 124 gr 9mm is going the same velocity as a 125 gr .357 Magnum with a 6 inch barrel. At 100 yards, it slows back down to a regular 9mm velocity fired from a 4 inch barrel.Actually, I think a small 9mm Carbine would be a great home defense option. Loaded with hollow points of course.
No excessive noise, no flash, minimal recoil, more capacity, more accurate, headshots possible in the off chance you have a hostage type situation, and easy reloading.
I see no negatives. I however see many on a shotgun.
There is a reason police swat teams and military spec ops teams have used and still use pistol caliber carbines for close quarters and not shotguns except for the door breacher.
You can't be surgical with a shotgun.