ORIGINAL: pinesap

I have a encore 12ga 3'' mag. It has the same rifle sights that are on the inline and firestorm. It shoots at least 6'' to 9'' high with Hevi-shot 3" # 5s. It will shoot ok with regular shells, but shoot high with Hevi-shot 3" . The problem is I can't move the sight any lower. for now I will try to raise the front sight. Any sugggestions??? Hevi-shot 3" Pattern so much better to not use them.