Range? Check out the “mini grenades” with the AA12.
https://www.youtube.com/watch?v=WV379084djs
Rifled aluminum slugs:
https://www.youtube.com/watch?v=iG7X0AYpVaU
We used shotguns when I was on gunboats in Nam when searching boats or barges in the harbor and other close quarters work. They aren’t much use at any kind of range over a few yards.
Shotguns are good for wing shooting and hallway clearing, not much else. And I love shotguns. No range unless you want to be launching a slug.
Gen. Childers is a good guy and I like a lot of his ideas. I am a combat shotgun fan because most engagements occur either very close or very far away. The up close stuff is the most common and the shotgun is far superior to a submachinegun:
1. An 8-round magazine load of 12 gauge 00 buckshot is 72 9mm-size soft lead slugs. A 9mm submachinegun has about 30 rounds of hardball available per magazine.
2. When a submachinegun is out of loaded magazines, reloading will take time. Just about as ugly as running out of ammo in a firefight. Shotguns can be replenished while it still has a round in the chamber, ready to fire as needed.
3. Submachineguns rise fast while being fired. If you haven’t got a solid stance, rounds #2 through #10 end up above your target. Shotguns recoil but all their pellets are going together to your aim point.
4. Shotguns are flexible. You can load them with everything from breaching plugs to FRAG-12 grenades for a very wide span of effects.
5. You can still beat your adversary to death with a shotgun. Much harder to do with a submachine gun.
Later
Joe Biden likes his double barrel for shootin them crooks through the front door.