from the wayback machine...
This worked on my 581 Mini30 Ranch:
-Removed stock from rifle.
-Put muzzle on a piece of 2x4
-Spray a piece of scrap 2x4 with WD-40 to oil it up so it doesn't scratch the barrel. Spray the barrel as well to help prevent scratching.
-Rest the 2" edge of the 2x4 on the base of the sight after removing the roll pin.
-While holding the board and receiver in the same hand, hit the board with swift raps from a steel hammer. (Deadblow never worked for me)
Two whacks got it off.
Not one scratch or scuff on the sight or barrel when finished. I also did it by myself, no spare hands required.
Pictures of the results over here..
Last edited by SureNSteady; 12-13-2012 at 20:16.
Reason: added link to pics