I don’t have audio on my PC, so i have no way of knowing what was explained in the vid. All I own are bolts, so its super simple to bore sight with out the lazer or optic. Set the rifle in a lead sled with the bolt removed. Back up and look at a target about 500 or more yards away through the chamber end of the barrel. Look through the scope and adjust until it meets the same piont of refence. Usually I’m centered and about 3-4″ high at a hundred yrds