From Matchlocks to Muskets: The Weapons Revolution
China invented gunpowder, and then the rest of the world used it to conquer China. The transmigrators arrive in 1628 determined to reverse that bitter irony, carrying in their heads the knowledge of five centuries of weapons development that they intend to compress into a few years.
The State of the Art in 1628
The Ming Dynasty's relationship with firearms in 1628 is a study in contradictions. China invented gunpowder in the ninth century and deployed the world's first gunpowder weapons, fire lances, bombs, rockets, in the centuries that followed. By the time of the Mongol conquests, Chinese armies were using primitive cannon and explosive grenades. The early Ming Dynasty, established in 1368, maintained this tradition, equipping its armies with a variety of gunpowder weapons and establishing dedicated firearms units.
But by 1628, Chinese firearms technology has stagnated while European technology has surged ahead. The standard Ming infantry firearm is the matchlock musket, known as a niaochong or "bird gun," many of which are copies of Portuguese or Japanese models acquired during the sixteenth century. These are functional weapons, capable of killing at a hundred meters or so, but they suffer from the inherent limitations of the matchlock ignition system. The shooter must keep a length of slow match, a cord soaked in saltpeter and dried, burning at all times. This glowing cord is conspicuous at night, vulnerable to rain, and requires one hand to manage, complicating reloading and handling.
Ming artillery is similarly outdated. The standard field piece is a small bronze cannon, often cast using techniques that have not changed significantly in a century. Larger siege guns exist but are poorly standardized, with each piece essentially a custom creation. Bore diameters vary from gun to gun, making interchangeable ammunition impossible. Quality control is abysmal; a cannon might fire perfectly a hundred times and then explode on the hundred-and-first, killing its crew.
The irony is exquisite. The civilization that invented gunpowder is, by 1628, using firearms that are inferior to those of the Portuguese, the Dutch, and even the Japanese, who adopted European firearms technology with remarkable speed after Portuguese traders introduced matchlocks to Tanegashima in 1543. The Ming court is aware of this gap and has made sporadic efforts to close it, hiring Portuguese gunners and purchasing European cannon, but these efforts are hampered by bureaucratic inertia, corruption, and a cultural reluctance to acknowledge foreign technological superiority.
What the Transmigrators Know
The transmigrators arrive with knowledge of the entire trajectory of firearms development, from the matchlock through the flintlock, the percussion cap, the breech-loader, the repeating rifle, and beyond. They understand the chemistry of propellants, the physics of ballistics, the metallurgy of barrel-making, and the engineering of reliable ignition systems. This knowledge is distributed unevenly among the five hundred; some are military history enthusiasts with encyclopedic knowledge of weapons development, while others know little beyond what they have absorbed from movies and video games. But collectively, they possess enough expertise to leap ahead of the seventeenth-century state of the art by at least two centuries.
The question is not what they know but what they can build with the resources available. A transmigrator might be able to sketch the design of a percussion cap rifle from memory, but without the industrial infrastructure to produce mercury fulminate, drawn brass cartridge cases, and precisely rifled barrels, that knowledge remains theoretical. The weapons development program must be calibrated to what their nascent industrial base can actually manufacture.
The Flintlock: Practical Revolution
The first major advance the transmigrators introduce is the flintlock mechanism, replacing the matchlock ignition system with one that uses a piece of flint striking a steel frizzen to generate sparks. In real history, the flintlock was developed in Europe during the early seventeenth century and gradually replaced the matchlock over the following hundred years. By introducing it in 1628 Hainan, the transmigrators are not leaping far ahead of contemporary European technology, but they are leaping enormously ahead of Chinese technology.
The advantages of the flintlock over the matchlock are substantial and immediate. No burning slow match is needed, eliminating the telltale glow, the vulnerability to wet weather, and the constant need to tend the match. The lock mechanism is faster to operate, enabling a higher rate of fire. The weapon is simpler to handle, requiring fewer steps to load and fire, which translates directly into less training time for recruits. And the flintlock is more reliable in adverse conditions: it works in light rain, in wind, and at night without revealing the shooter's position.
Manufacturing flintlocks requires capabilities that the transmigrators must develop from scratch. The lock mechanism contains several precision components: the cock that holds the flint, the frizzen that the flint strikes, the spring that drives the cock forward, and the pan that holds the priming powder. Each of these must be made from good steel, hardened and tempered appropriately, and fitted together with enough precision to function reliably. The transmigrators' first flintlocks are hand-made by their most skilled metalworkers, each one taking days to complete. Over time, as their tooling improves and they train local workers, production increases, but the flintlock remains one of the most skill-intensive items in their manufacturing portfolio.
The barrels present their own challenges. A musket barrel must contain the tremendous pressure of burning gunpowder without bursting, which requires good material and careful construction. The transmigrators produce barrels by wrapping steel sheet around a mandrel and forge-welding the seam, a technique used by European barrel-makers for centuries. As their steel quality improves, they begin drilling barrels from solid bar stock, which produces a stronger and more uniform product but requires lathes and drill presses that are themselves products of their advancing industrial capability.
Rifling: Accuracy at a Cost
The transmigrators understand that spiral grooves cut into a barrel's bore impart spin to the projectile, dramatically improving accuracy and effective range. Rifling was known in Europe by the late fifteenth century but was not widely adopted for military use until the eighteenth and nineteenth centuries, primarily because rifled barrels were slow to load. A round ball must fit tightly against the rifling to engage the grooves, and forcing a tight-fitting ball down a fouled barrel with a ramrod is a laborious process that reduces the rate of fire to a fraction of what a smoothbore musket can achieve.
The transmigrators know the solution to this problem: the Minie ball, a conical bullet with a hollow base that expands under the pressure of firing to engage the rifling. This elegant design, invented by Claude-Etienne Minie in 1847, allowed a rifled musket to be loaded as quickly as a smoothbore while retaining the rifled weapon's superior accuracy. The transmigrators can produce Minie balls relatively easily once they have the concept, since the bullet itself is a simple lead casting. The difficulty lies in cutting the rifling, which requires specialized tools and considerable skill.
Their initial rifling efforts use hand-guided cutting tools pulled through the barrel, a slow process that produces inconsistent results. As their machine tools improve, they develop a rifling machine that cuts grooves more uniformly and quickly. The result is a weapon that combines the loading speed of a smoothbore musket with effective accuracy at three hundred meters or more, a combination that will not exist anywhere else in the world for another two centuries.
Artillery: The Big Guns
Infantry firearms win skirmishes; artillery wins battles. The transmigrators invest heavily in cannon development, understanding that superior artillery is the single most decisive military advantage they can create. Their approach combines improved metallurgy with better design principles to produce guns that outperform anything in the seventeenth-century world.
The first improvement is standardization. Every transmigrator cannon of a given type has the same bore diameter, the same barrel length, and the same powder charge. This means that ammunition is interchangeable, that gunners can be trained on standard procedures, and that performance is predictable. In an era when each cannon is essentially unique, this alone is a transformative advantage in logistics and training.
The second improvement is material. Ming bronze cannon are heavy and expensive. European iron cannon of the period are cheaper but prone to catastrophic failure. The transmigrators' steel cannon combine the best qualities of both: lighter than bronze, stronger than iron, and far more resistant to bursting. A steel cannon can use larger powder charges, throwing heavier projectiles farther and with greater accuracy. It can fire more rounds before wearing out. And it is less likely to kill its own crew through mechanical failure, which does wonders for artillerymen's morale.
The third improvement is in projectile design. Ming cannon fire solid stone or iron balls that damage through kinetic impact alone. The transmigrators introduce explosive shells, hollow iron spheres filled with gunpowder and fitted with fuses that detonate the shell after a set time or on impact. They also develop canister shot, tin containers packed with musket balls that turn a cannon into a giant shotgun, devastating against massed infantry at short range. And they experiment with incendiary shells for use against wooden ships and fortifications.
Naval artillery receives particular attention. The transmigrators' ambitions extend across the South China Sea, and control of maritime trade routes is essential to their economic survival. Their warships carry guns that outrange and outperform anything mounted on Ming war junks, Dutch merchantmen, or Portuguese carracks. The combination of superior metallurgy, standardized bores, and explosive shells gives their navy a firepower advantage that more than compensates for their limited number of vessels.
Ammunition and Logistics
A weapon is only as good as its ammunition supply, and the transmigrators understand that logistics, not heroism, wins wars. They establish ammunition production as a high-priority industrial activity, applying the same principles of standardization and quality control that govern their weapons manufacturing.
Gunpowder production is systematized and scaled up. The three components, saltpeter, charcoal, and sulfur, are sourced, purified, and mixed in precise proportions. The transmigrators know that the ideal ratio for propellant powder is approximately 75 percent saltpeter, 15 percent charcoal, and 10 percent sulfur, and they enforce this ratio through careful measurement rather than the rule-of-thumb methods used by Ming powder-makers. They also grain their powder, processing it into uniform granules that burn more consistently than the fine meal powder used in most seventeenth-century firearms. Grained powder is more powerful, more consistent, and safer to handle than meal powder, and its production is one of the transmigrators' most closely guarded industrial secrets.
Bullet production is similarly industrialized. Lead balls and Minie bullets are cast in standardized molds, weighed, and inspected. Substandard rounds are rejected and remelted. The result is ammunition that performs consistently from round to round, enabling accurate fire at ranges that would be impossible with the variable-quality ammunition produced by traditional methods.
The logistics chain extends from raw material extraction through manufacturing to distribution in the field. Each step is documented and managed using modern organizational principles that are utterly foreign to seventeenth-century military practice. Inventories are tracked. Consumption rates are calculated. Resupply schedules are planned. None of this is glamorous, but it is the invisible machinery that makes the transmigrators' military superiority sustainable rather than ephemeral.
Training and Doctrine
Superior weapons are useless in the hands of untrained soldiers. The transmigrators invest as much effort in military training as in weapons development, creating a professional army that fights with discipline and cohesion rather than individual bravery.
The foundation of their infantry doctrine is volley fire: coordinated volleys delivered by ranks of soldiers firing in sequence, so that some ranks are always loaded and ready to fire while others are reloading. This technique, developed in Europe by Maurice of Nassau in the 1590s, transforms a group of individual musketeers into a continuous firing machine. Implementing it requires extensive drill, because soldiers must reload and fire in a precise sequence, maintain their spacing, and obey commands instantly even under the stress of combat. The transmigrators' training regimen is rigorous and repetitive, drilling the loading sequence into muscle memory through hundreds of hours of practice.
They also train their troops in combined arms tactics: the coordinated use of infantry, artillery, and cavalry to exploit each arm's strengths and compensate for its weaknesses. Infantry holds the line; artillery breaks up enemy formations at range; cavalry pursues a routed enemy or protects the flanks. This integration of different military arms is standard practice in modern warfare but represents a significant doctrinal advance over Ming military practice, which tends to use different troop types independently.
The Ethical Dimension
The novel does not allow the reader to admire the transmigrators' weapons without confronting their purpose. These are tools designed to kill human beings, and the transmigrators are introducing killing efficiency that the seventeenth century has never seen. A volley of Minie ball fire from rifled muskets can cut down a charging formation at three hundred meters. Explosive shells can demolish fortifications that have protected cities for centuries. Canister shot can turn a battlefield into a charnel house in seconds.
The transmigrators who design and build these weapons are, for the most part, not soldiers. They are engineers, hobbyists, and history enthusiasts who spent their former lives reading about weapons, not using them. The first time their creations are employed against living human beings, the reality of what they have built hits with sickening force. The novel describes the aftermath of early engagements with unflinching detail: the wounds inflicted by high-velocity lead projectiles, the effects of explosive shells on human bodies, the screams of the dying and the silence of the dead.
Some transmigrators struggle with this. They built weapons because they had to, because without military superiority the entire Lingao project would be crushed by the first serious Ming military response. But "had to" is a slippery concept, and the line between defensive necessity and aggressive expansion blurs as the transmigrators' power grows. Each new weapon they develop makes them safer but also makes them more dangerous, and the temptation to use military force to solve problems that might be resolved through diplomacy or patience is ever-present.
This ethical tension is one of the novel's most compelling threads. The transmigrators are not conquerors by temperament; they are, mostly, ordinary people who want to survive and build something worthwhile. But they are building instruments of death with an efficiency that history will not match for another two centuries, and deploying them against people whose only crime is living in the wrong era. The weapons revolution they unleash is necessary, perhaps, but it is not clean, and the novel has the honesty to say so.
In the end, the transmigrators' weapons program embodies the central paradox of their entire enterprise. They have come to build a better world, but building it requires the capacity to destroy the old one. Every musket barrel they bore, every cannon they cast, every shell they fill with powder is both a tool of creation and a tool of destruction. The same steel that makes plowshares makes swords. The same chemistry that produces fertilizer produces explosives. The transmigrators live with this duality every day, and the novel asks its readers to live with it too.