There is no amount of data, equipment, load development, or anything else that can make up for a poor zero with your long-range rifle and scope combination. All else is meaningless if that foundational component isn't rock solid. In this episode, Instructor Justin Lipska talks about the process of sighting in a long-range rifle, and why a few simple steps can ensure that all the corrections you make at distance are done from a reliable zero, therefore eliminating a pesky potential variable from play.