Rifle is a Browning BAR Mark II Safari. The socket head cap screws in the scope base are rounded out pretty heavily. Based on the scope cap screws I removed, I don't expect them to be overly tight or have any threadlocker on them but it was my dad's rifle so I am being overly cautious with it. What method would be best to get them out? Screw extractor, impact driver, MAC RBRT sockets? Appreciate any help guys.