I’ve shot a Colt AR-15 twice. Yep, it’s a semi-auto medium cartridge carbine. Small caliber, high velocity. Very accurate. Well, for a semi-auto carbine.
I own 10 guns, all given to me or inherited. Shotguns, .22s, a few pistols and lever action rifles.
For myself. I wouldn’t mind owning one except for the stigma. I think that against some beliefs they would be a very good home defense weapon. Though I don’t have to worry about a round going through a wall and hitting a neighbor. I live rural Rocky Mountains. Note that sheet rock will hardly stop buckshot or a .357. But I digress.
Pretty much no one including police that are trained for stressful situations can hit shit when the rubber hits the road. A short carbine with a collapsible stock and 30 rounds would be one hell of an advantage even in pretty close quarters. Pistols/Revolvers are great defensive weapons in closets and elevators. IMHO.
We do have black bear where I live, and moose. If I HAD to shoot one for some reason, I would like a much larger caliber than a .223. I have that covered with a 336 Marlin ER in .356win (it’s kinda a rare rifle and caliber. Basically a .308 rimmed up to .35 and the casing built for the lever action carbine. My dad gave it to me).
Guns are to be respected and can be fun. I have $1200 dollars invested in an air rifle. I can target shoot off my deck without worrying about making any noise. Heck my wife napped inside last time I shot it. This old target shooter (I was 9yo when I got my first .22) is very impressed with it’s accuracy. There are options for target shooting. If you have a quality rifle, it’s just ballistics,and you.