I only have one two-hook Lefever, A 12 gauge G Damascus sn 20,633. I have never had to do anything to remove the barrels on it other than take off the forend, push over the to lever & lift the barrels from the frame.
I have a pivot opener @ # 10,515, the above mentioned two hook & the rest are large hook guns, starting at #29,471 & going through a late Ithaca assembled one with two SNs, 73,338/73,342. On any of these, I can take the barrels off regardless of whether the hammers are in the cocked or fired position. The location of that cocking pin through the barrel lug on the large hook guns is extremely critical. I only have one which gives any trouble & it was bought as a parts gun & the pin had been "Re-Located". The only way to assemble or dissemble it is by emoving or installing the pin.
