When you shoot benchrest for tight groups twist and bullet weight plays a big part in overall accuracy. It may not matter shooting MOA with iron sights but all my rifles open up shooting benchrest with bullets not designed for the rifle�s twist. The rifles I keep all shoot better than MOA and they are scoped. I am too old to use iron sights any more.
Sorry I forgot to mention tiggers. Yes you need a good tigger for accuracy.
