That sticky gummy stock was a Sako factory defect, a Sako sticky stock. Something in the stock finish that did not dry and remained sticky. I have one, appears to be unfired, just like yours was...sticky to the touch.
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"I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man."
Thomas Jefferson
GeoW, The "Unwoke" ...Let's go Brandon!
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