Che Dian Chong
The che dian chong (simplified Chinese: 掣电铳; traditional Chinese: 掣電銃; lit. 'lightning quick firearm') is a breech-loading, cartridge-using musket invented by Zhao Shizhen (趙士禎) during the Ming dynasty for the dynasty's arsenals. Like all early breech loading fireams, gas leakage was a limitation and danger present in the weapon's mechanism. 
- Zhao Shi-zhen(趙士禎).Shén qì pu (神器譜). 1598.
- Breech-loading arquebuses of the Ming Dynasty, retrieved 11 February 2018
- Leong Kit Meng (2006). Chinese siege warfare: mechanical artillery & siege weapons of antiquity, an illustrated history. University of Michigan. p. 91.