ed underdeveloped for so long. One major hurdle was rifling.Without a foundation of machine industry, relying solely on hand-crafting bullets would be impossible to guarantee production standards. Eve...ely on Long Huáiyu and Duan Jǐnjiāng. He said, “Which of my royal uncles are the ones backing you”"It seems he already expected Li Yinhou to ask this, Duan Jinjiang replied with an unchanged expressio...