I've just stripped my slr98 to fit a new cocking shoe whilst I have it apart is there any benefit to polishing the piston and or the piston sleeve?
There was a fair bit of gunk on the them so cleaned them up, it shot nicely before and don't want to do anything unnecessary if a regrease etc will do.
Also when fitting the knew cocking shoe I believe I need to tap the edges around to fit the piston, correct?

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