I checked those websites and the problem with that is that every company that makes rings measures them diffrently. So I have to go in person and get it sized.
I wont buy rings just to buy them from the store stock. But I will use them for a reffrence point if they dont have the ones I want.
Now for the what is going on here question.
I am trying to figure out which ring will work for my rifle and if a 20 MOA mount or a 0 MOA mount with diffrent rings make a diffrence or if I just doing the same thing with diffrent equipment.
Hope that helped clear things up for you.