I've got the same problem with my 475. It seems the bottom end of the trigger and inside of trigger guard get me. The angles in those locations are rather abrupt, they really need to radius them off more. For now I'm going to use a leather shooting glove or maybe a driving glove. Then later, after hunting season, I'm going to check with FA and see if they can or are willing to refinish a field grade. If they can, I'm going to radius off all of the offending edges and send it back to be refinished.