Add a recoil pad or a shim if there already is one. Making the stock a little longer raises the barrel. I'm six foot six and so I have this "problem" with a lot of my guns. The scoped rifles are ok but the shotguns and open sight rifles just don't line up right. I added a 1 1/2" shim to my 12 ga and my skeet average went from 17 to 23.