Ron,
I try to boresight around 100yds, but I'm not sure it is all that critical,just find a location as far away as is convienent.As long as the result is within the range of adjustment of the scope, you should be ok.I fit a set of "Contra Einhackmontage"(reverse claw mounts) onto a boltgun when I lived in Germany.They were made to screw onto standard recievers, but my military action didn't fit exactly and I wound up having to scrape the front ring in.My "shop" was in a "maids room"and the one window was too high to see any target to boresight it. I solved the problem by tapeing a piece of paper with two dots the same distance apart as the distance between the centerlines of the scope and barrel.I sighted the barrel on the lower dot and the scope on the upper dot.The distance was about 5 feet. It worked. I'm surprised the conventional boresighter worked, but I'm often surprised.
Mike
