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Talley do as well

If you have 63mm then mabe not on the Ringmounts, my Ringmount box intructions for the 30mm low gives a max diameter of 60mm or 2.36"
My Mount Ring box[as oppsed to Ring mounts] give an extra low...

Here, as you can see stacks of room under the optilocks.

http://i73.photobucket.com/albums/i228/ojr_2006/IMG_0134.jpg

I have a 30mmm Tube VX3 4.5x14 with the 40mm objective on my 85 with the long bases and low optiloks and there is stack of room under the scope so much that I have a stockpack on the butt to line up...