On September 15th, 1918, the Imperial German government did something no modern military power had ever done. It filed a formal diplomatic protest. Not against a machine gun, not against artillery, not against the poison gas that had been choking men to death in those trenches since 1915. It filed its protest against a shotgun shell.

The note traveled from Berlin through the Spanish embassy, then to the Swiss embassy, then to the American Legation in Burn. It arrived in Washington on September 19th, carried by the Swiss charge DeFair himself, addressed to Secretary of State Robert Lancing. The language was direct. The German government declared that American forces had deployed a weapon in violation of the laws of war.

It identified that weapon as the 12- gauge shotgun and its ammunition, and it announced that any American soldier found in possession of such guns or such shells would forfeit his life. Germany was threatening to execute prisoners of war over a hunting cartridge. The United States Army’s acting judge advocate general, Brigadier General Samuel Anel, spent five pages explaining exactly why Germany’s protest had no legal merit.

Secretary of State Lancing sent his reply. The shotgun was a lawful weapon, and if Germany executed any American for carrying one, the United States would make reprisals to match. Germany never replied. No Americans are known to have been executed. The war ended 53 days later.

But Germany’s panic over a shell, specifically over what nine lead pellets could do that one bullet could not, tells you something about the dark reason the 12- gauge buckshot load became the most feared American cartridge of the First World War. To understand why the 12-gauge shell broke something in the German military mind, you have to understand what the German military mind was built on.

German infantry doctrine in 1914 rested on the rifle and the bayonet. One soldier, one cartridge, one target. The GA 98, a Mouser boltaction chambered in 7.92x 57 mm, was one of the finest military rifles in the world. It was accurate at distances that made other nations infantry weapons look primitive. German marksmen were trained to engage targets at 400 m.

German tactical doctrine assumed engagements at range with mass fire and fire discipline. The individual soldier was a precise instrument delivering a precise projectile in a precise direction. That philosophy extended to the laws of war Germany believed it was upholding. The 1899 HEG declaration had banned expanding bullets, the so-called dum dum rounds that deformed inside a body, tearing tissue far beyond what was necessary to put a man down.

Germany had signed that declaration. The logic behind it was that warfare should be conducted with weapons that killed efficiently without inflicting wounds so catastrophic they constituted cruelty rather than combat. One clean wound channel, one bullet, one enemy removed from the fight. What Germany encountered in the summer of 1918 was a weapon that operated on an entirely different philosophy, and it did not come from a military tradition.

It came from a duck blind in Louisiana. The Winchester repeater shell loaded for the American Expeditionary Force was a 12- gauge paper cartridge crimped around nine pellets of double op buckshot. Each pellet measured roughly 8.4 mm in diameter, about a/ third of an inch, and weighed approximately 53 grains. Together, nine of them fit inside a single shell casing, one trigger pull, nine independent projectiles.

At the engagement distances of trench warfare, 10 yards, 15 yards, sometimes the length of a single bay of dugout, those nine pellets left the muzzle as a cluster and arrived on target before they had time to spread more than a few inches. At that range, a load of double O buckshot delivered energy roughly equivalent to nine simultaneous pistol rounds, each following its own wound track through whatever it struck. bone, organ, muscle.

Each pellet found its own path. The human body that absorbed a full buckshot load at close range did not receive one wound. It received nine. The HEG convention’s prohibition on unnecessary suffering had been written with a single projectile philosophy in mind. Bullets that expanded, bullets that fragmented, bullets designed to inflict maximum tissue damage beyond what was needed to incapacitate.

Those were what the drafters had targeted. A buckshot shell was not one bullet behaving badly. It was nine bullets behaving exactly as designed. And American lawyers knew the difference. Brigadier General Ansel’s five-page memorandum made the case with surgical precision. The purpose of the 12- gauge shell, he wrote, was not cruelty.

It was to put out of action more than one of the charging enemy with each shot of the gun. He compared the buckshot spread directly to shrapnel artillery and machine gun fire, both of which Germany employed freely, both of which scattered multiple projectiles across a target area, neither of which Germany had ever protested. The shell was not designed to wound and leave suffering.

It was designed to kill efficiently in the environment where it was being used. That environment was a trench 5 ft wide at ranges where aimed rifle fire was mechanically impossible. Germany’s protest, Anel concluded, was without legal merit. A WWI trench was not a straight line. It was engineered in deliberate zigzags, sections called bays, separated by traverses, specifically to prevent a single burst of fire from traveling the length of the line.

If an artillery shell landed in one bay, the traverse walls would contain the blast. If a machine gun fired down one stretch of trench, the next traverse would stop the bullets. The traverse system was one of the most basic defensive calculations of the war. The width of a standard infantry trench was roughly 6 ft. The depth was enough to put the average man’s shoulders below the parapet.

You could not stand upright and aim a rifle around a corner without exposing your head above ground level. And in 1914, 1915, 1916, every weapon on the Western Front, the Mouser, the Lee Enfield, the label, had been designed for exactly the kind of shooting you could not do in a trench.

They were built for open field engagement, for lines of men firing at lines of men, for aim shots at range. In the trench, that precision became almost irrelevant. The Winchester Model 1897, loaded with double O buckshot, was the first infantry weapon that turned the trench’s geometry into a liability rather than an asset.

Around a corner in a trench, aimed rifle fire required a soldier to expose himself long enough to acquire a target. The buckshot load did not. A man rounding a traverse with a trench gun could fire from the hip without sighting and deliver nine lethal projectiles into the bay ahead of him. The spread pattern, roughly an inch of spread per yard of distance at those ranges, meant the shot cloud covered the width of a trench bay.

There was no stepping aside. There was nowhere to go. The traverse walls that were supposed to protect the defenders became the walls of a box. And the man with the shotgun was pouring fire into the box. American soldiers called it slam firing. Hold the trigger, pump the action, and the Model 1897 fired on the return stroke.

Six shells in the magazine. 54 pellets emptied in a matter of seconds. German soldiers who survived trench raids described the sound, the rapid mechanical pump, and the overlapping concussions as unlike anything in their experience of the war. The first confirmed capture of an American soldier armed with the model 1897 came on July 21st, 1918 in the Bakarat sector of Lraine.

A soldier from the 77th division was taken prisoner with a Winchester trench gun and his issue ammunition. the Winchester repeater shells, nine pellets of double O buckshot each. German military intelligence examined the weapon and the cartridges and understood immediately what they were looking at. A second soldier from the fifth division was captured with the same equipment on September 11th.

8 days later, the diplomatic protest was in the mail. The dark reason Germany called the 12- gauge shell uncivilized is not that it was particularly cruel. It was that it was designed by people who had never thought about war at all. The American who conceived the trench shotgun was not a general or a weapons engineer.

William Eager was an electrical engineer from Valdasta, Georgia, who managed a lighting company. In September 1917, he prepared an engineering report proposing to modify existing sporting shotguns for trench warfare and sent it to the War Department. The War Department looked at the weapon already sitting in the sporting goods stores of every town in America, a pump-action 12- gauge designed for hunting water fowl and upland birds, and realized Eager was right.

They ordered between 30 and 40,000 of them from commercial manufacturers. The shell those guns fired was not a military invention. It was a hunting load. American manufacturers had been producing 9 pellet double O buckshot shells for deer hunters since the 19th century. The shot size, the powder charge, the crimp, all of it had been developed to take a deer cleanly at close range with enough pellets spread across a pattern to compensate for a moving target in thick cover.

The philosophy embedded in the shell was the philosophy of the American hunter. Get close, get multiple hits, make sure the animal goes down. When that philosophy walked into a WWI trench in 1918, it met a military architecture built entirely around single projectile weapons and it did not fit. The traverse system useless.

The range discipline irrelevant. The rifle training no help at 20 ft. Germany had spent 40 years developing a theory of infantry combat based on precise individual fire at distance. American hunters had been solving a different problem. How to ensure a clean kill at close range against a target that might absorb a single shot and keep moving.

There is something almost absurd about the image. a nation that had introduced chlorine gas to the Western Front in 1915, that used flamethrowers as a standard infantry weapon that had issued sawbacked bayonets so notorious for their wounds that its own soldiers discarded them in fear of being executed if captured, complaining to Washington about a hunting shell.

Brigadier General Anel did not miss that irony. His memorandum pointed directly at German Shrek kite, the doctrine of frightfulness, and named flamethrowers and poison gas as the actual examples of weapons designed to cause suffering without military purpose. Against that list, a shell that put nine pellets into a target in order to drop it quickly was not cruelty. It was efficiency.

The people who built it were not arms manufacturers calculating wound ballistics under the laws of war. They were sporting goods companies in Connecticut and Pennsylvania making the same shells they had always made for the same reasons they had always made them. And the American military had simply aimed that tradition at a different kind of game.

Germany had a framework for understanding military weapons for arguing about their legality, debating their ethics, measuring them against the convention civilized nations had agreed on. The 12-gauge buckshot shell sat entirely outside that framework. You cannot write a law of war against a deer hunting load.

Germany found that out in the Bakarat sector and never recovered from the surprise. No Americans were executed. Secretary of State Lancing’s reply translated plainly to, “We disagree, and if you harm our men over this, you will regret it.” The war ended before Germany had to decide whether to back down or escalate.

The shotguns kept firing. What Germany’s protest actually documented without meaning to was that American soldiers carried into the most industrialized war in history. A weapon that came directly from the American civilian tradition. Not a weapon designed to fight wars. A weapon designed to hunt. And on the Western Front in 1918, in the five- foot wide mud corridors where four years of industrial warfare had ground itself to a stalemate, the hunting tradition turned out to be exactly what the moment required. The 12- gauge shotgun is still

in the American military’s inventory today. The shell hasn’t changed much. Nine pellets of double O buckshot, same as 1918. Still effective, still legal, still univilized by some accounts. That’s the point. If this kind of history is what keeps you coming back, hit subscribe and we’ll keep going.