OK 2many I've been patiently waiting YEARS to hear about this gun barrel re-machining process

[gggGary]

spent months designing/building a machine that allows me to modify rifle barrels, to improve accuracy. The process takes about 2 hours. Working with a budget Stevens 200, using budget ammo, it now shoots 1/4" groups at 150 yards.


Unfortunately, I can't figure out how to explain how this works...

Try to spill the beans?

 

[nj1639]

Hear here for Frederick Douglas!
Carry on.......

 

[JesseeS]

That little guy? I wouldn’t worry about that little guy

 

[xjwmx]

Try to spill the beans?

Would be interesting to know what he did to the barrel (for a couple of hours I think he said) even if as he says he doesn't know exactly what happened to it. I suspect there's nothing new you can discover about barrels in a home shop at this point though. But would be interesting...

 

[mm1ut1]

common practice for a worn gun barrel is to machine it smooth and install a liner. Nice thing about this procedure is you can select the caliber (to some degree) and the twist. The American single shot rifle association, ASSRA, website has loads of information about this. Beware though, gunsmithing is a deep dark hole that can consume time and money almost as bad as motorcycles

 

[TwoManyXS1Bs]

Try to spill the beans?

Oh, me and my BIG mouth.

OK, I'll try to put something together.

In the meantime, chew on this...

https://www.quora.com/Is-the-shape-...o-when-match-grade-ammunition-is-manufactured

 

[mm1ut1]

https://www.thefirearmblog.com/blog/2021/04/08/world-record-nbrsa-1000-yard/

 

[TwoManyXS1Bs]

That's impressive, thanx.

My personal goal here was to try to achieve ultimate accuracy on a $200 rifle, using budget ammo...

 

[TwoManyXS1Bs]

Finally found an old (around 2008?) video of the machine in action.

It's a 40" wood lathe, modified for barrel work.

The green thing in the background is a 'spider' to hold a barrel's receiver. Also in the background is a 3-roller-type steadyrest, to hold the barrel near the muzzle.

This crappy video shows the machine being used to drill an old hardened 1890 Winchester 22 WRM barrel, as part of a relining project.

Of course, there's more.
I'll eventually get to it...

 

[gggGary]

Thanks for sharing!