The main spring tension screw was frozen as well, but yielded to an oil soak.
The one still frozen up is indeed the frame screw the trigger pivots on.
I have since watched numerous youtube vids on dealing with frozen screws with damaged heads.
So i am going to try heat and tapping, plus a trick shown on how to use a drill press to gain better leverage and downward pressure to hand turn the chuck with a lever put into the chuck holes.
I need to go buy a sacrificial driver bit to grind down to fit the slot before I do that, but I will report on how it worked out later.
The Remington army I have is a Euroarms that was made about 1973, by its proofmarks code.
But this old girl has little or no damage aside from the screw mentioned, and a broken hand spring which I can fix in several ways once I can get it apart.
She will live again.
-Badger-
Um, are we talking about the screw thru the frame the Trigger Pivots on?? Or the Main Spring tension Screw?? Or a frame screw??
Depending on "why" it's frozen, getting it out is going to be a major pain. Heat and tap tap taping with the hammer may be your only option(s).