I was wrong. The 1955 barrel didn't have the cosmoline cleaned out of it. Some dish detergent got it out in nice heaping clumps to show an immaculate, shiny barrel.
The lemon oil treatment is definitely helping the stock but now I'm debating stripping and refinishing it.
Started working on disassembling/cleaning the bolt when I got called away for a honey-do.
So should I or shouldn't I strip and refinish? I'm no expert on woodworking so any advice would be helpful.