I removed the tang sight from my Great Uncle Clem's Winchester '94 30-30 so I can put it on my Great Grandfather's Winchester '94 32-40 which I shoot a lot. The rear tang screw came out just fine. It's the large one that threads into the bottom tang and has a pretty large head and slot. The front screw is the problem. Apparently this gun was drilled and tapped back when it was built for a tang site. However it's pretty small, the head is about 1/8 inch in diameter and has a pretty thin slot. I have a screwdrive bit that fits perfectly, but the screw won't budge. I really don't want to bugger up an old screw, I want to put the screws back in the other rifle. I don't know enough about complete disassembly, and remove the stock to soak the screw from the underside. Other than "take it to a gunsmith" are there any suggestions?