Distance adds variables. When you're shooting at a target that's more than a mile away, obtaining a targeting solution becomes extremely complex. The best way to ensure a satisfying hit is to simplify the process, and that's exactly what the PMR 428 does. The PMR is a whole new way of looking at long-range shooting. When you dial the turret, it calculates the bullet trajectory utilizing a full suite of sensors and an advanced ballistic algorithm and it calculates the solution in real time. Just dial the elevation turret until the display shows the target range. Its as simple as that!