"What twist rate is this barrel?"
This guy:"Yes"

Just imagine if this talented young man was in a modern, well equipped shop with adequate funding. Back in the day, (yeh, I'm really old) these were the kind of people who made the difference between a business being a success or a failure. Kudos to you young man.

This guy made this look easy.  There's no way in hell those rifled grooves would've turned out that well if I had attempted this.

Fun fact: The bullet stabilizing effects of Rifling were discovered by accident.
In the very early days of firearms, gunpowder produced a residue that would quickly disable a firearm as it was fired. An arquebus/musket was only good for 40-50 shots before it got so gunked up it became impossible to shove a bullet down the bore (remember: This was still the days of muzzleloaders), also making it a danger of exploding in the face of the shooter, so it needed cleaning quite often.
Cutting groves in the barrel was intended to make it so it could fire for longer before needing cleaning. At first, they were cut straight. But some guys discovered it was easier to cut the grooves in a spiral pattern. So when they test fired their product, it was found to be much more accurate than smoothbore or straight grooved barrels. It is said that they even outperformed an arquebus blessed by a bishop, with crosses marked in the bullets and dipped in holy water. The church doesn't concern itself with such mundane matters because "don't take the Lord's name in vain" and such. It' probably a legend.

Anyhow, I've been wondering for years how they did it back in the 1400s. And this man finally gave me the answer with the way he twists a square peg of HSS. Amazing how we take things for granted these days. I never imagined how you could do it besides a proper broaching machine and the modern rotary hammer techniques.
End result is a little rough. But besides the lathe, dude did it with no machines and thatis very impressive!

The number one cringe I get from almost every one of these Eastern metalworkers???   Sandals & bare feet.  I got slagged while welding early in my career, and it was like driving a red hot soldering iron half way through my arm... Still have a hell of a scar 40 years later.  I can't imagine some of the burns these guys have endured...  Still, given the tools most of them have to work with, they are the most gifted smiths I've ever seen.👍

14:57 Only me or someone else view James Bond at the other end of the pipe?

I love it how you guys always have a rooster nearby 😂😂😂😂

now fire a projectile through it.  BTW, this is the first time I have seen someone post their process for riffiling a barrel.  Pretty cool.

Comparing this to any gun I own ... I think it's really terrible looking. Compared to what I could do... this is god level machining.  It's amazing you made this yourself.

14:04 Why did the chicken cross the road? To help the machinist check his work 😂

Now that is a true bolt action. 😂😂. Great video sir.

Precision comes later, its the beginning of the process, that is very important, rest is patience and resources. Good luck.

Excellent work. 90 percent brain and mechanics. 10 percent machine.  Pay attention folks. This is how things are machined. Not relying on computer assistance or another country entirely for machined parts is nice. This man is smart enough to comprehend this.  Bravo!

I am completely amazed by these guys that have no formal training but work purely from talent and experience.  Amazing!

Finally someone who knows how to treat his tools well (with cutting oil) ! Interesting video !

to make the process proceed smoother i'd recommend a couple extra but shorter lengths of drill rod to start with, additionally cut off another bolthead and drill a recess for the rod to fit into, this should remove the mushrooming issue.

At first I thought the rifling looked bad, but seeing how he did it it actually turned (ha) out really well considering all he had was a bent piece of steel. Good work!

From what I could see the method of making a riffling button is a good Idea but looking at the twist in the barrel it looks far to fast, it would strip very quickly.  All in all a very good idea and method though requiring a little more work. Do not take this as criticism I like the hammer drive method very much.

Heck of a job sir, partial matching and partial handmade tools, that how my dad taught me, I used to make firing pins for antique firearms out of old center punches

Got to give the man credit for creativity