i bought a simmons 2.5-10 that i got for a steal. at 100 yrds it shoots great groups, but at 200 it opens up more than i think it should. one day it will group great out to 300 yrds and on other days it will be all over the place. ive shot on iron sights at 200 with no problems so im pretty sure its in the scope. so now im to the point of buying a new scope, and was wondering what all you guys and gals out there had on top of your rifles. im looking at the new line of aetecs, but i was just wondering if anybody has shot them. i have also had a problem with the scope hitting me in the nose, which has made me move the scope as far forward as it will go. im guessing the accuracy problem is parallax, but any advice or experiences would be greatly appreciated.