if i am hitting 1 inch high and 2 inches right , i go down 4 clicks and 8 clicks left? is this right. i was getting a little confused in the sub zero weather today. old iron sights habit kicked in. any help would be appreciated. also the bdc is 2 moa circles, so if i am zeroed. the first circle down (300 yds). the hornady 40g drop -4.5 so whats does this mean?