Burris Zee ring 10 MOA question

[Steave]

I'm mounting a Leupold a VX-3 8.5-25 on a 6BR. Although I doubt I will need the extra elevation from a 10 MOA or 20 MOA base, or in this case ring adjustment, since I'm using Zee rings, I'd like to go ahead and give myself an extra 10 MOA. I know a lot of you guys use Zee's, and I've used them too, but never to gain elevation, just with the 0 inserts as I like the rings. So before I mount this scope I want to make sure I have this right.

To give myself 10 MOA of extra elevation the rings should be set as follows:

Rear +10 on the bottom, -10 on top
Front 0 on both top and bottom

To go to 20 MOA it would be:

Rear +10 on the bottom, -10 on top
Front -10 on the bottom, +10 on top

So, do I have this correct, or am I off somewhere?

Thanks much!

 

[kitsap]

Steave,

In general you are correct. Except the amount of elevation gained in MOA is dependent on how far apart the rings are mounted. The offset inserts are sized to provide a dimensional offset. When you buy the set of inserts, there is an instruction sheet that should specify how much angular change is provided with the rings a specific distance apart.

DougF

 

[brfun]

this should help http://bulletin.accurateshooter.com/2010/10/tech-tip-burris-signature-rings-calculating-actual-elevation-changes/
Brian

 

[Steave]

Thanks guys, I appreciate it!

Just to confirm, though, the way I indicated setting up the off-set synthetic spacers is correct?

Thanks again!

 

[jimbires]

that should be correct . my angle base is high at the rear . so you want the thick spacer in the bottom on the rear . Jim

 

[tiny68]

If you want an exact calculation for the MOA, ring spacing, offset, I did this calculation several years ago. I think it is correct. Tim

http://www.reloadbench.com/ubb/Forum24/HTML/000426.html

 

[Steave]

Wow, good info, thanks, Tim!