Last week, I took my bushmaster AR to the range, and it was shooting crappy. Its iron sighted, and I have had nothing but good shooting with it since I got it right after the ban ended. So what, 5 years or so? Well, its always shot right where I wanted it to, as long as I did my part. Last week, it was shooting high. Switching ammo didn't seem to make any real difference, either. I hadn't played with the sights at all, but for some reason, it started shooting high and to the left. This past monday, I took it back to the range, and got it sighted back in. I clipped the bullseye twice at 100yds, so I'm guessing its now good enough. :lol: What would make it come unsighted, though? Has anyone else ever had that happen?