RE: When sighting in a scope...
Nearly all scope adjustments are set for impact correction at 100 yds. Therefore, your 1/4" clicks are 100 yd. adjustments. At 50 yds., you need to double that. So, if you wish to move 3" @ 50 yds, instead of 12 clicks, which would make the proper correction at 100 yds, you need to move 24 clicks. And again, the arrows on the click adjustments refer to the direction you wish to move the POI (point of impact).