Last I checked they were like $150.00
Thats a lot of money for a zero set!!
Its worth every penny if your life is on the line or you are checking your scope at night!!
But for most of us just tape the scope setting inside your scope cap or on the bottom of your stock.
You never said what reticle you have or what caliber and bullet, but there are several ways to set up the NPR2
I use a 600 yard Zero and never dial untill over 1200 yards.
I try to make my 10 MOA mark on for 1K and the conditions as known, the cross hair will be on at 600 and the -8 MOA will be good to go at 100.
Just remember the power change will change your reticle, this is very important!!!
your cross will still be on at 600 but everything else changes, say you power down to 11 power now the line spacing is 4 MOA NOT 2 MOA as on 22 power.
When you power down to 5.5 your lines are 8 MOA apart.
Some people don't like this setup but after you start using it you will fall in love with the setup.
Edit to add You might check this out if you like to have the info handy in the shooting position http://www.allisontool.com/finder.html
I've never used one but thy look nice and you can get blank ones for your own info.