My Journey to Constantly Chamber a Rifle with Zero Runout

[dustin_drews]

If you guys are chasing your tails like I was the last 8 months or so about dealing with run out. This video should save you 8 months worth of frustration.
This was done via CNC. But can also be done the same way on a manual machine. Way simpler then writing the code and learning cnc.
If you manual machine runners are still using your tailstock. I would encourage you to switch over and use the carriage. The time you will save is enormous. You never have to wonder if your tailstock is inline. And a DRO will keep track of your headspace for you. No DRO an adjustable carriage stop will take the place of a reamer stop.
Now I know the old argument. Zero run out does not matter… You may be right? But it can’t hurt!
I have done 50 or so barrels with this method with zero run out.
There is one thing that I will mention about this method. Involving carbon fiber barrels. When I do carbon fiber barrels. Even using the aluminum collars that match the contour of the carbon barrel. I was getting movement in my set up. Not much but some… Once I switched over and started holding on to the metal shank and the carbon fiber with the collars that movement went away.
Hope this may help take some of your frustration away.

God Bless,
Dustin

 

[urbanrifleman]

I guess that true bore works.

 

[FireMedic]

I appreciate you taking the time to post these videos. I’ve been watching your journey from the acra to the haas, and I’ve been thinking about making the plunge and buying a CNC machine for my shop.

Are you doing anything different with 5groove barrels?

Also, I was curious the RPMs you are chambering at?

Thanks, and keep up the great work!

 

[dustin_drews]

I guess that true bore works.

I’d be lost without it.

 

[dustin_drews]

I appreciate you taking the time to post these videos. I’ve been watching your journey from the acra to the haas, and I’ve been thinking about making the plunge and buying a CNC machine for my shop.

Are you doing anything different with 5groove barrels?

Also, I was curious the RPMs you are chambering at?

Thanks, and keep up the great work!

Hope it helps. If you’re planning on switching to cnc. Dont be stupid like me and think you’re just going to figure it out in a couple weeks.
It’s been a journey. Like 60 to 80 hours a week of trying and retrying, changing this trying that building tooling ect.
I have done some 5 groove barrels. No issues. If I get any chatter I switch over to the rigid reamer and a tight pilot right away. It solves it.
Rpm. Varies greatly. Honestly I don’t feel comfortable in giving you a rpm recommendation on here. Because someone may skim read this and try it on a manual machine and would probably break something.
I don’t know why. But the TL1 is completely different animal the reaming with a manual machine. Many guys have reached out and asked me how I have gotten it to chamber by itself with no chatter. I will say RPM is my friend. But It even scares me how fast I’m turning.
Thanks for the kind words!
God Bless,
Dustin