ive never used a laser bore sighter in my life. why you ask?
take the initial shot at 25 yds. ive only had one optic i can recall installing that wasnt on paper at that range - and that was on a friends new slugger shotgun. we did find the paper at 15 yds though. still managed to sight that slugger in with 11 or 12 rounds @ 100 yds. my buddy was freaking out as i just grabbed the adjuster and gave it like half a turn to make the initial adjustment lol "man i could never do it like that" "dude, relax, its 25 yds... 16 clicks to an inch...we need to move it half a turn to do almost anything" "this is why i brought it over to your place, would have taken me boxes and boxes of slugs"
put a new scope, rings and rail on my bro's 700 last week.. zeroed that one in 10 rounds, including 3 misses @100 hoping for a miracle on the first three shots down the tube. 1 shot @ 25 (make adjustment, was high), 2 @ 50 (make adjustment between each), one more @100 for final adjustment, and then a 3 shot cloverleaf to confirm everything was happy .
but then again, i'm comfortable enough to take a single shot and know if i screwed up or not and its something i can make an adjustment from. i have no shame calling a shot a flyer if it didnt feel right when i squeezed.
but thats why i also always follow up the final adjustment with a group test to confirm things.
just my method, and it works awesome for me.