thanks for all of the input.by the way the peep sight i am aiming through is on my new colt ar-15 that i just recenty purchased.i have just had the time to put about a box of ammuntion through it.i guess i just need to sit down with alot of ammuntion and get to know it alitttle better.and for the record it is chambered .223.i never have shot a rifle with peep sights until i got my colt. how are the scopes for the ar's? thanks again.