sighting in your laser sight
Y'all may already know this already, but I found out the hard way. The paperwork that comes with Crimson Trace laser sights informs the user which way (clockwise versus counterclockwise) and into which hole the allen wrench must be turned to move the laser dot right, left, up, and down. What the instructions do NOT say is that if your shots are grouping right, the dot must be moved to the right to bring the group left. This is somewhat counterintuitive since, when adjusting iron sights, moving the rear sight to the left moves your group to the left. I guess the bottom line is that when making laser sight adjustments, follow the FORS rule for the front sight ("Forward = Opposite; Rear = Same"). Think about it. If the dot is moved further to the right, you would have to move the firearm to the left in order for the dot to appear over the middle of the perfect iron-sight picture.