I'm new to the ML shotgun and need some information. I recently purchased a 12 ga trapper shotgun and am using a full choke tube. My son and I patterned the gun yesterday and the best pattern was with 60 gr. of 777 and 1 1/8 oz of shot. The only problem is that the pattern was consistently low. Is there any way to get the gun to shoot higher or should I just point the gun higher?