You don't even have to shoot a shotgun. You can just rack it and the baddest muddafuggas on the planet will start running. That is an absolutely terrifying weapon.
Shotgun. Always pick the shotgun in any close in fight. Anyone that didn't picked the AR15 over the shotgun needs to be forced to have a close in gun battle with their stupid AR15 against an old granddaddy shotgun. That sumbytch gon learn today.
It is correct that you want a shotgun for home defense. Birdshot will do, with a round or 2 of buck if that mf doesn't get the message.
But shotguns aren't scary in the least. If you have grand dads shotgun that sumbich gonna have at least a 21- 28 inch barrel on it. Which if you aren't trained, is going to be a bytch moving around.
You aren't duck hunting, you aren't going to take a shotgun stance and plant your feet nearly shoulder width apart and swing your torso. Especially if that other person has a gun. Keep in mind 90% of shotty owners aren't training. They aren't running and gunning.
Suppose you have an 18.5 in or smaller. Well now you are in more trouble because when you shoot, you are going to have to get back on target.
If you are hoping for a shootout. Shotty is a good choice. You are better off shooting and hoping the sound of the gun fire or the slug destroying something scares them because if that don't then nothing will.