Roktoys84
Active Member
What is the preferred method/equipment used for boresighting?
I bought a Busnell magnetic boresighter a while back. I had my doubts about it when I got it. It's held to the muzzle by a magnet, but you can slide it around left-right, up-down, etc. So how can it be worth a darn if it's not in a fixed position, right? Well I've used it twice on new scopes. I put a yardstick across the scope's objective and parallel to the barrel. I try to get the top of the collimator in line with the top of the scope's objective. Then I eyeball the left-right orientation and try to get it as "plumb" as I can. Then I look through the scope and center the reticle on the collimator. Both times I've been on paper when I took it to the range.