Good video after the 10 minute preamble.
In my many Marlins, the slot in the bolt that accepts the end of the lever arm appears to be the most rough and poorly machined area of each rifle.
My operations on the bolt surface are limited to using polishing compound.
Would hold off on using a file in the ejector groove channel.
Good results can be obtained by the proper use of a bluing pen to touch up the steel on blued parts polished.
