In his original post, .222 states that he does not plan on using the MOA gradations on the vertical crosshair. He does not plan on "holding over" for bullet drop in compensation, but rather will rely on his rangefinder and then dial in the drop. However, .222 does say that he intends to hold for the wind. That being said, then the NP-R1 would be the better choice. The horizontal crosshair on the NP-R1 has stadia, or measurements at 2 MOA intervals, while the NP-R2 reticle has them every 5 MOA.
In most shooting solutions that I have encountered, extreme compensating for the wind has never been more than 5 MOA - and most of the time, it has been between 1 and 2 MOA. If your shooting solution calls for 1.5 MOA, then it is much easier to estimate that with a 2 MOA stadia than a 5 MOA stadia. for that reason, I went with the NP-R1.