Originally Posted By: 2-piper
...Dovetail Chopper lump & the mono-block were both developed for the purpose of eliminating the necessity of brazing so tube strength could be increased by some heat-treatment.


Miller,

Remember the mono-block was Pieper's 1881 patent. The guns he produced from that design, the Diana, had a fluid mono-block and damascus barrels. So no heat treatment. It may have gained in popularity later because the barrels could be treated.

Pete

http://www.damascus-barrels.com/Movie.html