who chambers rifles with a cnc machine?

[dunraven]

ryan pierce does, but his isn't programmed for stiller actions. know anyone else? thx.

 

[nmjwolf]

Travis Stevens at tscustoms does.

 

[vonb]

Check with Long Rifles Inc. in Sturgis.

 

[Cody Richardson]

Kelblys does

 

[Drop Port]

Robert Gradous does and several others use his program.

 

[wvuredneck09]

X-Ring gun smithing in Butler, PA. Top notch work and a great guy.

 

[carlsbad]

Why are you asking?

 

[dunraven]

Why are you asking?

my understanding is that this technology is superior. am I correct?

 

[carlsbad]

No you are not.

 

[DaveTooley]

I do but it's to increase production/uniformity not quality. I still run the finish reamer in the same way I do on a manual machine.

 

[urbanrifleman]

My friend Paul Craddock from Craddock precision uses various CNC machines and production of barrels but he does all of his chambering by hand and he says that's why his barrel shoot better then other people who use CNC for the chambering

 

[Rustytigwire]

Cnc is repeatable accuracy for multiple production.
It is useful in single situations sometimes
But
Manual is generally quicker than programming time for one off stuff
And
The craftsman feels the cut with all his senses and experience.
Cnc can not match that.

 

[dgeesaman]

my understanding is that this technology is superior. am I correct?

It’s superior to trying to run manual machines in a high volume manner. CNC wins when trying to maintain a base quality level and maximize production.

It has no advantage I can see for chambering one rifle barrel and maximizing quality on the first and only piece. I’d rather pay a machinist to go slower and triple check as they go.

 

[AndyA]

my understanding is that this technology is superior. am I correct?

CNC is great if you want to try a different take on a cartridge without buying a reamer and investing in custom dies. You just make them. So yes it is superior. Change the neck diameter. no problem. Change shoulder angle. no problem. Think up something original. no problem.

You have the ability to make it unique. Here is another secret, if you are making a test cartridge you can turn your own dies without heat treat.

 

[swd]

my understanding is that this technology is superior. am I correct?

If your thinking you’ll end up with a more accurate rifle that way, you won’t over a good gunsmith doing a proper setup and using a reamer. Like everyone else said it’s about production speed.

 

[6MMsteve]

every barrel is slightly different, some barrels are hand lapped even the lapping can change dimension though minute a good gunsmith will find this

 

[stifffingers]

Jeff Peinhardt

 

[Milo 2.0]

CNC is great if you want to try a different take on a cartridge without buying a reamer and investing in custom dies. You just make them. So yes it is superior. Change the neck diameter. no problem. Change shoulder angle. no problem. Think up something original. no problem.

You have the ability to make it unique. Here is another secret, if you are making a test cartridge you can turn your own dies without heat treat.

Please explain this. Are you referring to a mill or lathe?
I've seen many barrels chambered on an enclosed cnc lathe using reamers. I'm not about to claim BR accuracy here, but it was cool, fast and rifles were accurate. I was with Chad Dixon at LRI when he did a 6.5x47 for me using some special chip removal reamer that took 97 seconds start to finish once reamer started forward, of coarse a flushing system was used. It was a mirror finish and the back fourth of the chamber needed roughed up some with sand paper. It was at the time the most accurate rifle I had ever owned.

 

[savagedasher]

CNC is normally used for cutting thread and tennon and doing the taper on the back of the barrels
Chambering is normally done with. a reamer
I don’t know any that does both

 

[dmoran]

@savagedasher

One of the CNC setups I've seen is with a Haas T1 with a True Bore Alignment System. On the carriage, a tool bit, a threading bit, a drill bit, a roughing boring-bar, and a reamer. Like 10-minutes start to finish from dialing, indexing, fitted, to chambered !.!.!

Another way I've seen was again with a Haas T1 with a TBAS. Carriage setup the same except a finishing boring bar instead of a reamer. Again like 10-minutes start to finish, with the nicest surface finish chambers I've ever seen, particularly the throats.

Back in 2007 already, Phil Bower set a IBS-1000 record in HV-Gun for Group with a CNC single point cut chamber.
In the industry, I believe all Tikka and Sako chambers are being single point cut as well.

Below a picture of a boring-bar used to single-point cut chambers: