I finally had the scope mounted, and have shot my new 917VS....
I still havent had time to do a really good side by side test b/t my Nikon BM and the Mueller Tactical...but here is what I can say.....I have spent a good bit of time behind the glass of each scopes so I now feel I can give an opinion.......
The click adjustments on the Mueller are fantastic....right on where they should be. The clicks on my BM were kind of jumpy, but still managable.
It is CRITICAL with the Mueller to adjust the AO to the distance you are shooting b/c if not, everything is blurry.......but after the AO is adjusted, all is clear. On the BM, the AO placement was not nearly as critical. No matter the distance (up to say 300 yards, and as close as 10 yards), with the AO set at 100 yards, everything can be viewed clearly throughout the mag. range (at ten yards and 12x, it gets blurry, but that can be expected). The AO on the BM almost never has to be adjusted for a clear sight picture (to my eyes).
The last comparison I can give is the glass. To MY eyes, the Nikon is a little clearer, and I can see longer at dusk out of the Nikon. It is a very slight margin, but enough to me where I can tell a difference. However, their is a price difference so the Mueller ranks very well for the price.
If you have anyy more questions, just ask......
TIA