"This grenade, the principle itself is similar to that of the three-eyed gun, which is to seal the gunpowder in a confined space, and then ignite the fuse, and push the projectile or cannonball out through the thrust generated by the explosion, causing lethality."

"However, there are great drawbacks to this, our Ming production process is not very mature, and the airtightness of the gun chamber cannot be optimal, so when igniting the gunpowder......

Chapter 33 of "Saving the Ming Empire from a Son-in-law" Becoming Brothers is in the middle of a hand-to-hand fight, please wait a while,

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