Do you know how to strip the bolt,,, the striker assembly? Remove the bolt from the action and hook the sear on the bottom of the cocking piece over a metal plate or the like held in a vise. As you retract the striker try to move the safety. If there is a problem with the striker not being cocked far enough to the rear the safety should work once the striker is withdrawn the correct length. Take the action out of the wood and assure the trigger is correctly installed and functioning smoothly. Of course you've checked that the striker assembly was screwed into the bolt body completely, correct? If the safety works when the striker is pulled slightly to the rear then the sear engagement height is the problem and it will likely require a gunsmith's attention.. These parts were always listed as restricted by Winchester and usually required a trip to Winchester to get them replaced. It can be fixed by a knowledgeable gunsmith by slightly moving the safety notch on the striker to the rear.. If the safety is jammed either by rust or broken parts it will also require a gunsmith..unless you are familiar with striker assembly take down.. Just see if the safety will work out of the bolt and go from there. Also be sure to remove the metal work and check to see the trigger is functioning correctly..
