Nitrah;
Before you do anything ask yourself why it is out of position. When the gun was made it would have been placed in the correct position usually with a lot of force applied to the screw slot. Ask yourself some questions like this: has the gun been re-stocked; does the butt stock now have a great deal more expansion to it because of the humidity where it now resides; is there any thing interfering with the original stockmaker cuts allowing the bottom tang of the action to come into its original position; do you have a screwdriver(turnscrew) of proper size and strength to tighten the screw--if it is a British made gun it originally was likely tightened with a brace. If you do not know what a gunmakers brace is then watch some of the Gunmaking.UK series on youtube.
I do not recall every finding a top lever screw (breech screw/pin) that needed to be filed such as you described, it was always something else that kept the screw from going to its proper position.
Kind regards;
Stephen Howell
Last edited by bushveld; 08/28/26 11:11 AM.