Oh yes, cosmoline is like crabgrass. I know the gas tube is still full of it between the metal & wood.
The stock is bare dry wood. I need to seal it with Tru-Oil or something. And I haven’t been able to pry the butt pad off.
Don’t know why you’d pry off the buttpad. But I’d take it out and shoot it...or set it in the sun on the hood of a hot car. Cosmolene will bleed out of the wood.