zeroing the reticles

[legi0n]

I've read somewhere that in order to zero the reticles one should put a mirror on the scope objective facing towards the lens, look through and then turn the clickers until the 4 reticles (2 real , 2 ghost images) align.
This also helped me figure out how good the rings/bases are in alignment with the barrel.

It works for all my scopes except for one: the Bushnell Elite 4200. I can see no ghost images of the reticles no matter how I look.

What gives?

 

[jjohnwm]

???

 

[legi0n]

found the issue: the scope has to be at minimum zoom to see the ghost reticle images.

 

[Woodsman]

Cool trick!

 

[surfclod]

That is a new one to me. I have never heard or read of such a trick but with a barrel swap in the works I will have to give this a try.

 

[Juster]

Does this center the reticules along the axis of the scope, then? I must give it a whirl.

 

[Cummins4x4]

Interesting technique, I'll have to try it. I just run the turret from one end of the adjustment to the other and count the clicks, then run it back to half that number, always seemed to work for me.

 

[legi0n]

Does this center the reticules along the axis of the scope, then? I must give it a whirl.

yes, with this technique you can not only center the reticules to the optical axis but also check how far they are from that axis.
The optical axis is midway between the reticules and the ghost images.