chief: i do not understand your reply. the sleeving and fitting of your extra set of barrels has no affect on your other set of barrels. in the end you would have two sets of barrels that fit the same forend and receiver. one set of barrels would have the original damascus tubes and the other set would have new fluid steel tubes sleeved into damascus breeches. if you wish to discuss this, email your phone number via pm and i will call you.

keep it simple and keep it safe...