I am trying out some Berger 40 grain bullets in my Savage BTH in 204 and they will not feed into the chamber. They are hitting the barrel on the side, just missing the mouth of the chamber. I do not have this problem with my Sierra 39grain bullets or other bullets. It is the new center feed type. I love the rifle but want to use some Berger bullets for coyotes. Has anyone else had this problem and what can be done to fix it?