Sounds to me like plenty of room! I have bobed a few, but most of the time with a Leupy, its not necessary. (Just the tip above the spurr.) Here is some pics...

Here is a Nikon:

Here is a Pentax:

Here is a Leupold:

Here is another Leupold:

Here is another Leupold:

Here is another Nikon in different rings:

Here is a set of Leupold LO PRW rings that I like:

Here is a Leupold in LO Weavers:

Here is a Old Redfield in LO PWR's:

Here is a Burris in LO PWR rings:

Here is a Leupold 1x4 in LO PRW's:

Here is a set of LO Warne rings with another Leupold:

Here is yet another Leupold in LO rings:

CW