Aiding the Ming Dynasty

Give it to the author! There's no need to thank me, it's all to fight against the Qing Dynasty 😁 This is the barrel forging method of Spanish and French heavy-duty matchlock guns (called Turtle Dove Guns in the late Ming Dynasty)! It is stronger and stronger than the flat lapped coiled plate of the British. The diameter of 20-21mm is powerful and conducive to drilling and enlarging the pipe. The 6-70 meter can completely penetrate the iron armor of Jiannu White Yara! The Manchu Qing's armor-piercing longbows and heavy arrows may not be able to penetrate the Ming army's iron armor at this distance! Combined with the tactics of light field artillery forged from wrought iron or cast from bronze, Jiannu can be completely restrained in field battles!