Free: Contests & Raffles.
Remove the bolt, sight thru the bore as if it were peep sights. Center your bullseye in the bore on a 25yd target. Adjust accordingly. This will put you very close at 100yds.Oh yeah, put the bolt back in for the rest of your sighting in, LOL.
I have a laser boresighter but only use it for rifles that I can't pull the bolt. Even those I'm starting to just put out a 4' square of paper at 25yrds it's just easier.AWS