I would agree 2.5MOA accuracy is whats required for a 100 yards shot. Reason I say that is one, you want good shot placement with a ML. Blood trails can be spotty for the first 50 yards. And in a hunting situation, freehand, against a tree, using your treestand as support, thats going to cause you possible further error. So a little margin sure won't hurt. So yes a deer has 6" kill range, but that doesn't mean your going to be shooting off the bench at a deer sandbags and all.