SoCo, it seems your knowledge of assault weapons and associated law is about as good as Civet's. Grenade launchers and SAWs are illegal.
And you might want to check the stats on how effective a .22LR is against assailants. There's a big difference between a cottontail and a 200 lb man -- especially if he's wearing heavy clothing. Hope you filed off the front sight.
John Hinckley hit four people with a .22, and all of them lived. There's a reason people who rely on firearms for defense don't carry .22s. There's an old rule in combat that says to never get in a handgun fight with a caliber that doesn't start with "4".
Geez...... you are obtuse. No duh sherlock, can you discern a little sarcasm when you see it (bout the SAW's and launchers)? I was making a point being that if you have a nuke it ain't going to be effective if you can't push the button.
Hinckley was likely shooting shorts out of a Saturday night special without extreme care to accuracy. I'd feel confident a high velocity 22 long rifle would either kill or hurt a man enough shot in the face at close range that I'd be able to get more rounds in him if needed. Also, what if your high caliber round rips through the next two walls harming a loved one. Now if I was going into a combat scenario sure, give me 45 or better, but that's a whole nother ball of wax.