I bought my first rifle today (Sig 522) because of a great deal I found. It's also the first firearm for me in .22 caliber. I'm not sure if I'm going to keep it though because it doesn't come with sights and I wasn't expecting sights to be so expensive (Can I get decent sights for less than $200)? Anyway, since I'm unfamiliar with the round (except for it being ridiculously cheap), I did some research online. I came across this: http://www.fbi.gov/publications/leb/2004/oct2004/oct04leb.htm#page_15 28 LEOs slain from 1993-2002 by .22 cal and 9 were wearing body armor! I'm guessing these were head shots?! I have a different opinion of this caliber now. I thought it was only useful for plinking. How effective would a Sig 522 be for home defense? I'm guessing it would LOOK intimidating, but would you pick it over a pocket 9 or 380? Or would the intruder just feel like he's getting stung by a big swarm of bees?