Thanks for the input guys, now that I have some good websites to buy from, my only other question is if steel cased ammo is bad for just going through the motions at the range. I've shot some silver bear and Tula in the past through my AR, but I was told by a marine that it is bad stuff and shouldn't be used. My thinking is that, yes, steel on steel contact is generally bad. However, steel casings are much thinner than the inner mechanisms of firearms (extractors), and will probably not have much of an impact on the longevity of my firearm (if it is maintained and oiled properly). Never the less, I would greatly appreciate any opinions on the matter.