Devil Dog, we have a string with some pics going over on the Mauser forum. Problem was solved. I noticed a slight indentation where that little tab at rear of the trigger sear that sticks out the back just a little was inprinting into the wood. I relieved a little more wood from the front of the rear action screw hole, and now the bolt works fine. That tab (part of the sear that touches the spring) was contacting the wood and was binding the sear when the action was screwed into the stock, and as you said, jamming the sear up into the cocking piece.