Thanks again, guys. Please read both of my posts. I can't do a conventional through the bore sight. Trust me, I'm not a rookie, I've done this dozens of times and things don't line up with this one. And I center my reticle by rotating in a V block. Something is off, barrel installed crooked, base screw holes? I'm trying to get a handle on things without multiple trips to the range.
Thanks to those who mentioned specific devices.
