So you don't think it's oppressive, discriminatory, and downright bullshit that it's ok to keep several 5 gallon cans of gasoline in your basement, but you need a special permission slip for your ammo can of jammomatic .22LR? Come on dude I liked you more than this.
As for the caliber thing, I have to disagree again, how far do I plan to get with a couple hundred rounds is invalid, how far do you plan on getting with a couple thousand of 22lr? It goes back to my previous post, all this ammo #'s stuff is stupid because in a real shootout the odds of you, one man against enough people to need that much ammo, expending that much ammo, without taking effective return fire is unrealistic. Basic load out, 4-8 30 round mags in a reliable carbine, is going to solve your problems, if not youre gonna be dead anyways without a team of people supporting you.