i have a 10/22 and have had it for about 3 years now its pretty accurate and very reliable by now ive shot 15,000 to 20,000 rounds through mine, its compleatly stock and i just clean it after every weekend and keeps running great but i can tell i nees a new ejector for it cuz its not ejecting the shells very well anymore. for home securety a 10/22 would be your best option IMO there are high capacity mags every where for them and TONS of mods for them, you could get a colapsable stock for it which would make it good for moving in the house or to make it a little smaller if you have younger kids in the house who may have to use it someday