The reticle in that optic is indexed in either MOA or MILs it is not a BDC reticle set up for any particular load. Once you establish your ballistics it will work with any load.
You will have to reach out to Optics Planet to answer that question.
It is certainly appropriate for that application. There may be others in our product line that are also applicable to your use. If you would like to discuss further please call Nightforce Optics Customer Service at 208-476-9814 option 3
That scope is a MIL reticle with MIL adjustments.
The prices listed for the ATACR and everything else on our US based website is US dollar.
Thank you for your question! The best ring height on this will be running the 1.5" height. You can run the Unimount with 20 MOA of taper or with 0 MOA. The part number for the Unimounts will be A221 (20 MOA taper) or A496 (0 MOA). Or you can run the Ring Set which will be A203 (4 screw) or A269 (6 screw).
It depends on the weapon platform being mounted to. For example, an AR would need different height rings than a traditional comb bolt action rifle. Please email us at techsales@opticsplanet.com with the make, model, and caliber of your firearm for further assistance.