Hey, everyone.
I bought a Bushmaster AR-15 a week ago. It's the first gun I've ever owned, and the first time I had fired a gun was two weeks before I got it (a 12-gauge shotgun, a German 8-mm Mouser and a .22 rifle). I've fired a lot of air rifles and air pistols throughout my 20-year life, but they aren't really the same. Needless to say, I don't know all that much about guns (Yes, I know about gun safety, and do not treat guns like toys or anything, don't worry. I may be a newbie, but I'm not stupid). So here's the first newbie question:
1) How many shots should a Bushmaster AR-15 be good for if kept well cleaned/oiled, etc? Since that's a rather unclear question, I'll put it this way: How many shots did you guys fire before some part of your gun went kaput? It may sound like a silly question, but I'm kind of overprotective of my new piece of technology.
2) I've been curious - the inside of the barrel is rifled and chrome-plated. Why don't bullets rub it all away? Those things are moving really fast - I'd think they would do some damage. My guess is that the pressure behind the bullet rushes past the bullet a bit, creating a coushin of air around the bullet, thereby keeping the bullet from touching the barrel. Am I close?
3) What is the best .223 ammo for the best price, and where can I get it? I don't want crap that'll damage my gun, and I don't want expensive stuff. The stuff I'm getting right now is $5.29/20.