I went to the range todayto try again with my AR and luckily i got some very definitive results. I shot at 25 yds and agaaun tried both small and large apertures. I found that with the large aperture i always was on paper, but shot rather spiratically. With the small aperture, i had great groups to adjust from and sighted it in perfectly at 25. I really concentrated on my breathing and trigger pull today, and i shot a lot better because of it. This makes it pretty obvious that the problems i hd shooting yesterday were definitely my fault. Thank you for everybodys help. If anybody would like i can post pictures of y targets from today to show how much better things were.