Re: NF Unimount
I get the feeling the mount may be designed for the AR crowd, like La Rue, Burris, etc - the front ring forward of its clamp allows the mount and scope to be placed further forward on the receiver.
However by placing the clamp back from the ring you have created a bit of a cantilever. Under recoil you may get more objective bell flex and some tiny flex at the front ring than with conventional rings or a one piece mount.
The point may be moot as objective bell flex will happen with normal rings or one piece mount but from the point of the front ring.
It may help to watch the S&B scope youtube video bouncing around on an AI AS50 to help understand the point, but I am sceptical about believing my own eyes with that video - I think a lot of the apparent scope flex the video shows can be from air movement created by the muzzle brake (like mirage causes a target to move on a hot day).
If you already have a flat picatinny rail and want to mount a NXS scope on it with a 20 MOA one piece mount, the options are few, the uni mount offers this and in two hights so mounting a 56mm objective shoud be possible on almost all barrel countours. Nightforce says no lapping required either - a big plus if you happen to have a scope issue with a Nightforce, it removes the question of not having proerly mounted or lapped scope rings.
The uni mount was something I thought about for mounting a NXS scope on my AW50. Requiring a very high one piece mount and 20 moa the options are very limited. I ended up with the DTA (deset tactical arms) one piece mount - excellent piece of kit.
David.