There are a few things you can try. It sounds like you are gripping the stock very tight. Less grip means less vibs. You might try a thumb hole stock by rotating your wrist more it may send less into your forearm. Also you might try an automatic they seem to shoot smoother. If you can afford it Benelli makes a gun with vib dampeners. I know how you feel I have lots of metal in me. And you can feel everything.