Ok so here is the brutal part. If someone is in your home that doesn't need to be there, you shoot to kill. There are too many risk factors involved with keeping someone injured and alive. Why are they there? What kind of person are they? I listened to a podcast done by a "retired" burglar. He basically said if he had gotten held at gunpoint he would have surrendered and beg for his life but not everyone is the same. He also said laminated windows was the best deterrent against thieves as they're too much of a hassle to break and get through. Most burglars will just give up because its too time consuming which increases the risk of being caught. Its always an in and out job... mostly in the day time. All that night time stuff is mostly just Hollywood.
But back to the issue of shooting someone. If you hit someone with birdshot, unless its in the face and you take out eyes, once they get their bearings again they could be dangerous, especially if they're under the influence of meth or some other type of drug. These people may have had no intention of harming anyone but now they're hurt, scared, and not thinking rationally. They're bleeding, they might have transmittable diseases, they're going to attack you now because they chose fight instead of flight. Maybe its just someone down on their luck, you shot them, they lived... now they're going to sue you for their hospital bills and try to get some extra. (there are actual cases of this happening). Shoot to kill... dead people can't sue you or attack you after the fact. Killing someone can be traumatic, but is the stress of the unknown worth holding someone at gunpoint with a phone in your hand until the cops arrive? What if they flee? I'm sure your state is much less forgiving by law if you shoot someone in the back even if its in your own home that they were robbing. You know this, and let them escape... will they come back for revenge? Are they waiting outside for you when you take out the trash to hurt you for trying to kill them? Maybe and most likely not.. but its always gonna be in the back of your mind.
Now when I say shoot to kill, you shoot someone, they go down... if they're still alive writhing in pain. I'd say tell them not to move. Again its a fine line... don't empty the mag/clip/tube into them to make sure they're dead. That will definitely constitute as an execution. I don't know your state laws, I'm just going on what I know from certain states where this is such a touchy issue. In my state, you can in fact shoot someone in the back, in your yard, in your car... that all constitutes as your "castle" as they call it. Now if they drive off in your car you can't go driving after them and empty a mag... you'll get hit with reckless endangerment.
If you want to go the route of non-leathal there is insurance for self defense shootings. the USCCA provides it from like $30-50 a month. It provides you with legal defense in case someone sues you for shooting them. In some instances your homeowners insurance can cover it. It's def something that needs to be researched.
And one more time. Get off the .22!!! Unless you gonna be shooting snakes, squirrels, groundhogs, and other small mammals. Plus if there is ever another school shooting, or any kind of mass violence, .22 ammo will be non existent. People buy them all up in a panic because they're cheap. I remember after Sandy-Hook and congress started discussing gun control there was an absolute frenzy on ammo in almost every caliber. But even after things calmed down it was months before .22 was available regularly and the price jumped significantly. Its a shit round good only for the things I just mentioned. Its more to do with the velocity of the cartridge than the actual round size. A .223 or .17 hornet is basically a .22 with a shit ton more gun powder behind it. Basically its the difference between putting a philips head screw bit at the top of your 8th grade science class baking soda rocket and then doing the same but putting it at the top of a Saturn V rocket. .223 doesn't kick bad if you're worried about your wrists and elbows. There is a reason the military uses .556 (just a .223 with more umf... a gun chambered with .556 can shoot a .223 much like a .357 mag can shoot .38 special rounds... just don't shoot .556 out of a .223 or a .357 out of a .38... the frames aren't designed to handle the pressure).
Here is a coyote gun for under $500 with the scope. Savage Arms is a pretty good budget brand... and this video isn't 20 min. It shows the kick pretty good. There is a heavy barrel variant which will mitigate recoil further.
I saw this at sportsman outdoors site with a rebate. I don't know if you have any brick and mortars of these up there. The thing about gun retail is that the prices can wildly vary from gunshop to gunshop and big box retailers. Big box places like Academy and Bass Pro are going to be more expensive most the time than your local FFL dealer. And its always worth scoping out the price on the internet at places like budsgunshop. To buy a gun online, you'll have to consult with your local gunshop, they order it for you. But you have to ask what their transfer price is. The shops generally have a set price for transfers so they can make some money off a better deal you found online than they have in their inventory.
If you want to see some wrist breaking action tho.....
Its time stamped to skip to the good part.