Recently received from CMP (end of Feb.) a special rack grade winchester Garand. I am having an issue sighting this rifle in. No matter where I place the front sight, (centered or far left) I will still need to crank in 6 to 8 clicks of right windage on the rear sight to get POI in center of target at 100 yards. Have used LC69, as well as 2 different receipes for home loads. Ammo does not make any real difference. What am I missing or not doing here?