I'm looking at putting a 30mm tube on top of my ARC Nuc G2. Currently have a 42mm objective, might be en route to a 50/52 mm objective (lots of space over the Proof CF w/ the pic rail in place). Using the ARC version of the coin spacers, 4 pennies will about do it. Herein lies the question - my math says .83 inches is what I need. ARC low are .94" (and their recommendation). Seekins medium are .87" (I've got a set of these on a Tikka already). The biggest clearance issue is actually the scope's eye piece over the pic rail - if that clears, I can run the Hubble and still be fine over the barrel.
Assuming these both work (and they should), what would you choose and why?
Assuming these both work (and they should), what would you choose and why?