OK.. too many times I have heard that even though a rifle shoots one hole at 100 yards doesn't mean it will shoot good groups at longer ranges. Given that you are shooting a quality bullet ( SMK ) and that all conditions are constant. Conditions will be dead calm, 59 degrees, no mirage. The other given is that your twiat rate is sufficient to stabilize the bullet you are shooting. Someone please explain to me how if the rifle shoots into one hole at 100 why it might not shoot that well down range? If it is holding .5 MOA at 100 what would cause it to hold 2 MOA at 500? taking out all human variables. some of this just doesn't compute in my head.