Ballistics

“ Again, I have seen a shrapnel burst alongside within range; and five minutes later the balloon was down and out of sight. No balloon observer hopes to see the enemy's guns. He is watching for shell- bursts, in order to inform the guns of his side whether they are on the target or not.
Riding along the roads at the front one may know that there is a battery a stone's throw away only when a blast from a hidden gun- muzzle warns him of its presence. It is wonderful to me that the artillery general who took me gun-seeing knew where his own guns were, let alone the enemy's. ”

“ A small part of the gas generated by the explosion of the individual cartridge operates the mechanism, discharging the bullet, throwing out the empty shell and making ready for the next shot.
A machine gun is designed to enable one man to fire the equivalent of a volley, or series of volleys, discharged by an entire platoon (one-third of a company) of infantrymen. As at present developed, it represents a step toward the evolution of a shoulder-rifle that will throw a continuous stream of bullets. ”

“ The problem, then, seems to be to combine the shock, or killing power, of the old, big, lead bullet with the high velocity and extreme accuracy of the modern military rifle. With the Mauser and the Lee-Enfield one can hit his man or his beast at a great distance, but the shock of the bullet is much less than that of the old, round, lead one. The military bullet simply drills a little clean hole which disables the soldier, but does not bring down the beast, unless it passes accurately through some vital spot. ”

“ That is to say, our artillery observing officers would go into the trenches with a telephone connected up with their batteries. Then the battery fires a shot at the enemy's parapets, generally well over. He reports the hit right or left, and then the range is reduced until the object is hit. That range direction and elevation is recorded in a register at the gun. The man who sets the gun does not see the object he is firing at at all, but he knows when his gun is trained in a certain line at a certain elevation he will hit that part of the enemy's parapet. ”

“ As each gun was able to fire twenty shots a minute, they hurled over one thousand high explosive shells from all of the guns each minute.
This multiplied by sixty, to represent an hour, and then by five to get the grand total, in point of time, makes more than three hundred thousand missiles distributed over an area of less than five square miles. Imagine, if you can, what it would mean to have ten of those terrific shrapnel shells explode over every acre in that region. No wonder that human flesh cannot stand that sort of warfare. ”

“ Missiles have peculiar characteristics, and differ in their capacity for deadliness. For instance, bullets of the most harmless kind are those having a high velocity, those that hit apex-first and do not “keyhole,” and those possessing a hard, smooth sheath with a smooth, rounded surface. After these come missiles of more death-dealing or mutilating nature—the Dum-Dum bullets, with the nickel sheaths around the apex removed in order to expose the lead nucleus, Remington lead or brass bullets, shrapnel bullets, and fragments of shell. ”

“ However, there exist dum-dum bullets, as I mentioned before. They are manufactured by the soldiers themselves. If the point is filed or cut off a German infantry bullet, so that the nickel case is cut through and the lead core is laid bare, the bullet explodes when striking or penetrating an object. Should a man be hit in the upper arm by such a projectile the latter, by its explosive force, can mangle the arm to such an extent that it only hangs by a piece of skin. ”

“ One steel bullet, or one shell, fired from a modern high-power gun into a chest of shells or bombs, loaded as they are with highly explosive material,—one such bullet or shell thus fired, might set off a chest of shells and carry death to all around, these shells, exploding other chests of shells, and these still others, creating a sort of hell in all directions. The possibilities thus created by modern highly explosive ammunition materials are terrible, horrible to contemplate. ”

“ When a charge of powder is exploded in the barrel of a gun, it expands in all directions. Of course, the projectile yields to the pressure of the powder gases and is sent kiting out of the muzzle of the gun. But for an instant before the shell starts to move, an enormous force is exerted against the walls of the bore of the gun, and, because steel is elastic, the barrel is expanded by this pressure, and the bore is actually made larger for a moment, only to spring back in the next instant. ”

“ Even amid the booming of the anti-aircraft batteries and the sharper staccato reports of the machine guns from various parts of the field, all blending into an unearthly din, the droning of the motors high in the air could be distinctly heard. Like a pyrotechnic display, luminous bullets, searching for the invaders, shot up into the sky, often piercing the low-hanging clouds; and mingling in with them were vicious little spurts of fire which told of the explosion of shrapnel shells. ”

“ They continued their "giddy-go-round," and a dozen of the Huns at top speed, with engines full out and machine-guns rattling and ripping out a storm of tracer bullets in streaking pencil-lines of flame and blue smoke, came hurtling down like live thunderbolts. The sight alone might well have been a terrifying one to the Fo-Fum men, and the sharp, whip-like smacks and cracks about them of the explosive bullets which began to find their mark on fabric or frame would also have been upsetting to any but the steadiest nerves. ”

“ Bang! and a massive cannon ball tore whizzing over our heads. The shore batteries had us in their range, and the firing from the far-reaching Whitworth guns grows more rapid. Puff after puff rolls up from the long line of battery-covered hillocks, under the bastard flag, and the rolling thunder peals on our ears with the whizzing of death-threatening balls. Oh! the excitement of watching and wondering where the next ball will strike, and whether it will crush a hole right through us, wasting rich human life, and scattering our decks with torn-off limbs and running pools of blood. ”

“ At times their descriptions are so meagre that it is difficult, if not impossible, to decide whether certain projectiles were incendiary or explosive. At other times they abound in tropes and figures of speech which amount to an unintentional suggestio falsi. “The missiles spread themselves abroad like a cloud,” says a Spanish Arab; “they roar like thunder; they flame like a furnace; they reduce everything to ashes.”1 A projectile full of blazing Greek fire appeared to Joinville to be of portentous bulk. ”

“ Every moment or two the ground shook with the recoil and thunder of our batteries, while the air above and around us seemed literally filled with shrieking, moaning, whistling projectiles of almost every size and pattern in present use. From them came puffs of smoke, sharp cracks, heard above the general din, as they exploded and showered around us pieces of jagged iron. When a shell bursts, its fragments strike the ground obliquely, with a forward movement; therefore our comparative safety behind our rock, which often shook from the terrific impact of missiles on its outer side. ”

“ In the case of the gun the gas is formed almost instantly and in such quantity that it has to drive the bullet out of the barrel to make room for itself. In the cartridge that our army uses, only about a tenth45 of an ounce of smokeless powder is used, but this builds up so heavy a pressure of gas that the bullet is sent speeding out of the gun at a rate of half a mile a second. It travels so fast that it will plow through four feet of solid wood before coming to a stop. ”

“ It is not strange that the airman does not worry much over the regular steel ammunition of the machine gun, for like other similar dangers, while they are the most fatal, they cannot be seen, so, he is oblivious to their presence; but when the guns are using tracer and incendiary bullets, the stream of fire is not unlike a miniature fire rocket and behind each of the pretty fire rockets comes two silent, fatal 171ball cartridges, for, indeed, the very object of “tracer” ammunition is to show the path the bullets are taking. ”

“ The shell-fire grew more and more intense. The air was thick and choking with smoke and chemical fumes, and vibrant with the rush and shriek, of the shells, the hum of bullets, and the ugly whirr of splinters, the crash of impacting shells, and ear-splitting crack of the guns' discharge, the 'r-r-rupp' of shrapnel on the wet ground, the metallic clang of bullets and steel fragments on the gun-shields and mountings. ”

“ An extremely spiralled rifle barrel destroys the explosive force of gunpowder, but the effects are not felt in the recoil, being most all expended laterally. Blaine says, “Could we entirely obviate all recoil from a gun, we should not only remove an unpleasant shock to our persons, but there is reason to believe we should much assist the range and force of the shot likewise; although there is an opinion prevalent, that the degree of the recoil is in the proportion of the projectile force.” ”

“ This must be wrong, as it is self-evident that the striking energy or knock-down blow must depend upon the resistance which the body offers to the projectile. If the bullet remains within it, the striking energy; complete and entire, without any waste whatever, remains within the body struck. If, therefore, a bullet '577 of 648 grains propelled by 6 drams of powder has at fifty yards a striking energy of 3500 foot pounds, that force is expended upon the object struck,—provided it is stopped by the opposing body. ”

“ Cunningly hidden away at different points, the guns will make their presence constantly known to you. Here a battery of ugly-looking howitzers is loosing off salvos into the Hun trenches, and a little further along, perhaps, a 6-inch gun by the roadside will every now and then belch forth a sheet of flame, as with deafening row it throws a projectile, weighing about 100 pounds, screeching through the air, which explodes perhaps five or ten miles behind the German lines. ”

“ There are various modifications of this weapon, but in all of them air is driven into a strong chamber by means of a forcing syringe, and is released by the pull of the trigger, so as to drive out the missile which has been placed in the barrel.
It is worthy of notice that the term “noiselessly destructive” weapon, as applied to the air-gun, is entirely false. I have already mentioned that with the blow-gun of tropical America a definite explosion accompanies the flight of each arrow. ”

“ The batteries were simply planted down in a long line in the open, or at best had the guns [328] sunk a foot or two in shallow pits made by spading out the connecting rims of a group of shell-holes. The gunners, whether serving at the guns or taking their turn of rest, were just as open and exposed as the guns. The gun shields gave a little protection from forward fire of bullets, shrapnel, or splinters, but none from the downward, side, or backward blast of high-explosive shells. ”

“ In spite of every precaution at Government proving grounds, big projectiles do sometimes glance out of the butts or heaps of earth into which they are fired, or from the face of armorplates against which they are directed, and finally land in most unexpected quarters.
One day, while a thirteen-inch gun was being tested at Indian Head, a projectile glanced out of the butt, mounted high into the air, and then came down through the roof of a building, where there were engaged a number of officers and book-keepers. ”

“ As you may imagine, the bullets work great havoc on men and horses within this area. Sometimes the fuse does not explode the powder at the right time. In order that the shot may not be wasted, it is provided with a cap, which causes the shell to explode when it strikes the ground. A quick-firing gun, such as is used by the Royal Field Artillery, fires about six times a minute. When necessary it can fire much more rapidly than this. As many as twenty shots a minute have been fired from a British field gun. ”

“ British Battery in Action
Not long after, an airplane located these monsters and succeeded in destroying one by a downpour of explosives he dropped on it, and the other one, a couple of days following, when being fired by its crew, the shell exploded in the gun itself, tearing it from its cement foundation and destroying itself and crew. These were the only guns of that caliber that have ever been used, so far as is known. The passage through the air of those missiles of death, heralded by their choo! choo! ”

“ The bombs reported as noisily as the seventy-seven-millimetre guns, but they made only a shallow hole in the ground. More devastating were the machine-gun bullets which zinged off the steel helmets of the men or bored their way through to the skull. Under the combination of direct artillery fire, enfilade machine-gun, rifle sniping, bombs dropped from airplanes, the ranks of the advancing men had become so sparse that the attack was brought to a temporary halt. ”

“ Such a method would also be likely to lead to much waste of the enemy's ammunition. We have all read again and again of terribly expensive assaults made on particular positions bristling with machine guns, such as the Hohenzollern Redoubt, and how our men were mown down directly they left their trenches. Not doubting that such attacks could be rendered far less costly, I wrote about a year ago to a friend in the War Office, suggesting that chemists should be invited to consider the best form of smoke-producing bomb or shell. ”

“ It is a shrapnel with a detachable head filled with high explosive. When burst during flight it acts like an ordinary shrapnel, and the bullets fly forward and sweep the ground in front of it; at the same time the head, with its explosive burster, flies forward and acts as a small but efficient high-explosive shell. These projectiles have been introduced for howitzers and for anti-aircraft guns, and some of the nations with new [285] equipments, such as the Balkan States, have them for their field-guns. ”