Unfreezing a Lyman 48 - 06/01/14
I've got a nice sporterized Springfield '03 action with a Lyman 48 rear sight attached. The sight has the 120MOA elevation slide and target knobs.
The problem is, the sights adjustments are frozen. There is some surface rust but no pitting or obvious corrosion preventing the knobs from moving. I haven't tried moving the knobs with more than firm finger pressure because I don't want to strip the adjustments.
What would be the best way to "unfreeze" this sight? Penetrating oil? Disassembly? If disassembly is the way to go, are there any manuals or schematics available online?
The problem is, the sights adjustments are frozen. There is some surface rust but no pitting or obvious corrosion preventing the knobs from moving. I haven't tried moving the knobs with more than firm finger pressure because I don't want to strip the adjustments.
What would be the best way to "unfreeze" this sight? Penetrating oil? Disassembly? If disassembly is the way to go, are there any manuals or schematics available online?