Well I've been practicing 1/3inch at 30 yards doing ok but and nothing great to report so far LOL:) Curious type that I am , I was searching around for more MOA info and found this in the library ... thought was interesting how technical all this MOA stuff can really get!
http://www.gatewaytoairguns.com/library/Minute%20of%20Angle.htm I will be sticking with Jcups target for now and trying for a basic one hole group at 30yds :) Tony.