Lawrence, who was staying at the station, did not have time to spare, and he still had one more thing on his agenda, which was to cooperate with Major Trefali to modify the smoothbore gun.

When General Nathan learned of this, although he did not believe that Lawrence could produce any results, for the sake of the face of Major Cuffali, a skilled firearms craftsman, he still sent someone to prepare the necessary tools and materials for the two, and provided dozens of muskets that had been scrapped due to malfunction for experiments.

Of course, it was up to Major Trevary to do it, and although Lawrence had sufficient theoretical knowledge, he would not be able to make even a nail if he was asked to wield a hammer and strike iron.

"Everything is ready, Major Bonaparte."

Major Trefali looked at the scrapped muskets, pig iron, and various parts all over the ground, and rubbed his hands excitedly. If Lawrence's principle could be realized, the name of Trevley would certainly be indispensable when people mentioned muskets in the future.

Lawrence nodded and decided to start by engraving rifling.

Although rifled guns appeared as early as the fifteenth century, rifling was a time-consuming, labor-intensive and highly accurate process, which made the production of rifled guns very low. Coupled with the many drawbacks of this firearm, it has not become widespread.

In Lawrence's memory, later generations of gun barrels were directly stamped when engraving rifling, but in this extremely limited environment, Lawrence had to use the primitive hook knife broaching method.

This method was favored by many colonists, and due to the poor conditions of the colonies, this method had the advantage of simple tools.

All you need to do is make a simple wooden broaching machine, fix the scraper to the machine, and pull back and forth to rotate the handle to which the barrel is attached.

However, even though this was a very primitive and simple process, Lawrence explained it to Trafali for a while, and even built a small model to make Trafali understand what he meant.

"It's a lot more convenient than carving rifling with a scraper."

When Major Trefarli understood, he clapped his hands and went straight to action, although he was a skilled firearms maker, he was also quite skilled in carpentry. Lawrence, on the other hand, stood by and gave him a hand, pointing out problems from time to time.

After two or three hours of tossing and turning, Major Trifali finally built a sturdy scraper according to Lawrence's idea.

As for the scrapers used, Major Trefali also burned a furnace of high-carbon steel without stopping, and made a dozen scrapers from these hardness steels at a time as backups.

By the time all this preparation was done, it was already dark, and Lawrence wanted to continue tomorrow, but Major Trevary excitedly pulled Lawrence to make the test tonight.

Seeing this, Lawrence had to smile wryly and send someone to fetch some torches for lighting, and accompany Major Trevary to continue processing.

With scraper broaching, it only takes twenty broaches to engrave a rifling, but Major Crifary has broached each rifling hundreds of times to ensure quality.

It was not until midnight that Major Trefari panted and removed the barrel from the broacher, and finished the assembly of the butt, flint, rammer, and other parts.

"Good work."

Lawrence smiled and patted Major Trefali on the shoulder and said:

"Maybe this gun can change history."

Major Cuffali could not contain his excitement, touched the gun again and again, and then found ammunition and prepared to start the experiment.

The two men set up a human-sized ball of straw wrapped in cloth in the courtyard as a target, and then stood a hundred yards away and began shooting.

This rifled gun was no different from the fifteenth-century rifled gun in terms of reloading, and it was still necessary to use a small mallet to smash the bullet into the barrel in order to embed the bullet in the rifling.

It is precisely this disadvantage that makes the loading time of a rifled gun reach about a minute, while in the case of a smoothbore gun, one minute is enough for two or three shots.

Major Trefali himself took the musket and laboriously reloaded the ammunition, then excitedly pulled the trigger on the target in front of him.

"Bang!"

"Bang!"

......

After firing ten shots, the two men went up to check the target, and saw that there were seven bullet holes densely distributed on it, and considering the effect of Major Ciffarly's shooting ability, the gun should have a hit rate of about 80% at a distance of 100 yards.

This result had already excited Major Trefali, knowing that the current smoothbore gun could only have a 20% hit rate at a distance of a hundred yards.

However, Major Trefarli was not excited for too long, and in the shooting he had just made, he could clearly feel the disadvantages of this gun, the shooting efficiency was too low, and there was no advantage at all in the face of smoothbore guns in large-scale combat on the battlefield.

When Major Trefali told Lawrence about his concerns, Lawrence simply smiled and said that the matter would be resolved tomorrow.

The problem of rifled gun shooting efficiency is essentially that the bullet needs to be embedded in the rifling with a mallet, and as long as this problem is solved, the rifled gun can also fire at the same frequency as the smoothbore gun.

The next morning, while still asleep, Lawrence was woken up by an excited Major Trefarly, who dragged Lawrence to the testing site.

To solve the problem of firing efficiency, Lawrence decided to adopt the historical Mini shell, which was invented by an English captain named Mini.

Of course, it may be called Bonaparte in this world.

Unlike the spherical lead bullets commonly used in muskets today, the shape of the Mini bullet is very similar to that of later bullets, with a copper tip at the front and a cork at the back, in the shape of a hollowed-out hemisphere.

"It's... Will this work? Major Trifali asked, incredulously:

"If the bullet doesn't stick to the rifling, it won't spin stably."

"The best thing about this bullet design is its tail." Lawrence explains:

"When the gunpowder is excited, the resulting gas rushes into the cavity at the end of the bullet, causing the cork tail to inflate so that it can fit snugly against the chamber. This is the same as a blowpipe that blows darts. ”

"Shhhhh

Major Trefali took a breath of cold air, and quickly understood what Lawrence meant, and at the same time, he also had a faint feeling that if such high-precision, fast-loading firearms appeared on the battlefield on a large scale, the line tactics would soon be swept into the dustbin of history.

The thought that he might be the leader of this war revolution made Major Trefali feel hot.

According to Lawrence's design, Major Trevary made a prototype after some tossing. Lawrence couldn't help but feel that his skill was superb, the caliber of this bullet needs to be slightly smaller than the barrel, and too small and too large will cause problems.

"Major Trefali, come on."

After briefly examining the bullets, Lawrence smiled and handed it to Trefali, leaving him with the first shot of this epoch-making weapon.

"Thank you, Major Bonaparte."

Knowing that such an act represented a great honor, Trefali excitedly and gratefully took the bullet and loaded it into the chamber of his gun.

With a bang, the gas from the deflagrated gunpowder propelled the bullet to spin out of the chamber at high speed, and the trajectory that crossed the air was almost a straight line with the barrel of the gun, hitting the target accurately.

"It worked!!"

Major Trefarli opened his mouth wide and waved his hand to disperse the smoke in front of him, his hands trembling uncontrollably from his excitement.

Lawrence was also relieved when he saw this, after all, he was only providing ideas to Major Trefaly, and he was not sure whether he could succeed at one time.

"We can make a name for ourselves all over Europe with this gun!" Major Trefali kissed the gun directly into the barrel and shouted at Lawrence.

Lawrence smiled and nodded, and said silently in his heart:

"We can conquer all of Europe with this gun."