Does ANYONE know what size screws I need to attach a #2 Weaver side mount base to a Savage model 5? Please help a brother out on this one..I patiently waited a week to get the base and rings and what came with it doesn't fit what I'm guessing to be the factory holes on the receiver opposite of the bolt. The #2 Weaver side mount base came with a couple of sized screws and the larger ones for but are too loose to snig down..any help will be greatly appreciated...