Rick, it's not a 'senior moment', its the male version of menapause- momentpause!

. But seriously, you have it correctly. The technique in brief is: 1-secure the weapon in a sight vise or on a bench rest so it remains unmovable, 2- fire a round and adjust the crosshairs to center on the hole in the target, and 3- move the crosshairs to a fresh part of the target and repeat. The technique is useful when you don't have a bore sight kit or much ammo to spare for sighting in, BUT it requires the weapon to be securely mounted AND you must be able to see the shot hole in your scope. Sometimes it just doesn't work out as easily as other times- weapon moves, scope is way off to begin with, ammo is inconsistent, scope and/or mount moves with the recoil due to faulty installation, etc. Me, I can't use it because I generally can't find the hole in the sight picture when I'm trying to zero in at 100yrds, that's why my son got a spotting scope for Christmas several years ago. Hey Junior, Dad's got a new rifle and scope! Want to sight it in?