Has anyone seen the lack of penetration of .223 in a house dry wall test.
Besides bird shot, .223 tumbles on hard surfaces and don’t really over penetration. Let me see if I can find the test.
I think youll find it penetrates drywall walls very well.
I've seen tests where it was fired into the back of a Chevy Suburban and penetrated through the rear door, both rows of rear seats and the front seat, and embedded itself into the dash.
Personally, I think the AR carbines or one of the pistol caliber guns are the better choice over the shotguns, especially if you have a number of different users. They are easily handled and shot by kids and small statured adults and recoil is nothing. You can easily get a red dot on them as well which gives you a 24/7/365 sight. The only real downside to the rifle caliber guns is muzzle blast, but then again, everything is going to be hurtful loud indoors. I seriously doubt anyone wants to touch off anything indoors without protection. Its not all that fun with it.
I have a bunch of short barreled shotguns. Pumps and autos. I prefer the autos, but the pumps work. If it had to be a shotgun, Id prefer to go with a 14" auto with a full stock and pistol grip. A lot easier in tight spaces if you have to move around.
While the 18" guns arent really big, they are still a bit awkward and limiting to move around with in tight spaces. A pistol gripped stock makes things a little easier.
While I have one of the Shockwave type guns entry guns, it would be my last choice of the guns I have. They work, but you need to know what youre doing with them, and it takes a bit of work to get good with them, and I don't see untrained people doing well with one.
The recoil generated by 12 ga. guns can be intimidating to a lot of shooters and gets old pretty quick for anyone who shoots a lot in practice, and you need to practice with what you plan on using.
Theres just a lot to rule the shotguns out if there are other choices.
Handguns make the most sense, and having one on you all the time just makes even more. You ALWAYS have it and don't have to go look for it or get it.