Re: NPR2 variables.??
It would indeed be 4 MOA at when going from 22x down to 11x The size of the object is twice as small in relation to the reticle at that point, likewise at 5.5x it's 8 MOA calibrated.
How far off is the reticle calibration, and what power do you have to set it on to make it perfect? Have you called Jeff at NF about it? I'm sure he'll take care of it in a hurry what ever the problem with it ends up being. You paid good money for a flawless scope, and he "knows" it too.
I'll have a look at my dads 32x NF and see how well it's calibration is at 22x. I have zero complaints with mine on 22x, never have checked it at 11x or any other though, I will tho.
POI drift: If you can check the scope on another rifle and another scope on that rifle, that's the route I'd surely take. Been reading a lot about barrel thread joints causing POI shift enough I wouldn't discount that either.