I have scoped both of my Tikkas with the VXr. On my 30-06 mountain rifle, I have a custom 2-7x33 with firedot 4, I had leupold add the P5 dial from the VXr patrol. It is set up for fast acquisition in the woods and an occasional cross canyon shot. The firedot 4 is metric/mil (yes I understand that metric is linear and mil is angular, but the clicks are actually mil clicks). The reticle is nice and thick and move your eyes right to the dot.
On my prairie rifle (7mm mag), I have a 3-9x40 cds, the duplex is a little spaced further and thinner, but adequate.
Pros
The VXr comes with a 30mm tube and has 60 moa of travel vs the 52 of the VX3 (in same price range)
The dot will turn itself off after a few minutes and awakes when you move the scope
The dot is not obtrusive, you can turn it down very low for shooting in the thicket, or bright for daylight field hunting
(not real important) but aesthetically, the VXr has a profile and fit similar to most higher end scopes.
Tracks excellently
Plenty of eye relief
Cons of a sort.
The VXr is built with VXII glass (equivalent) not speculation or subjective, it was stated by Leupold marketing in a video I posted a couple of days ago.
Subjectively, I have compared the VXr and VX3 side by side and found the VX3 to be a bit sharper at the high end and better low light performance.
The gold ring lifetime warranty only applies to the glass, body and erector. Electronics are only covered for two years. This is known as the Gold ring electronics Warranty.
Magnification factor is less than the VX3, where you have 2-7, 3-9, 4-12 . The VX3 2.5-8, 3.5-10, 4.5-14
The VX3 has a ranging feature with their standard duplex, you bracket a deer and adjust the mag ring, then look at the ring and read your range. Not a show stopper, but just a matter of convenience.
In the end the vxr will shine in the woods and thicket, the dot is not necessary for prairie hunting. If the rifle is for prairie, bean field, or canyon, I would opt for the VX3. The VXr is a very nice scope, just that the VX3 has a bit better glass and coatings.