Parallax Adjustment Tutorial with Ryan Cleckner: Why It's Important and How to Use It
Ryan Cleckner explains that parallax adjustment on rifle scopes, often called the target focus knob, is crucial for accuracy. He advises against relying on yardage markings, instead recommending a head movement test to ensure the reticle doesn't shift relative to the target when parallax is correctly set. This ensures the reticle and target are on the same focal plane, preventing aiming errors.









