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Turning and chambering a barrel


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Barnsleys fine mucker :lol:

 

I wish I had time to take 5 weeks off....i can't even manage 2 days in a row to come to Bisley these days.

 

Hope you,ve had a nice break. ;)

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Inbound for tomorrow morning

"What's in the box"?

A lathe chuck

"Ok"

 

Didn't realize I'd packed the Allen keys in my carry on, so the TSA now have a tool kit, as I could've undone something one the plane :-)

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How are you getting on with the TBAS Mark?

 

Pretty good so far thanks

Installed the other day and already teaching myself.

First jobs were a couple of .22 barrels and I'm very happy with the results

 

16266299_1865526180336735_61929528837355

16114548_1865526210336732_43943910390490

16194895_1865526230336730_76858889600119

16298847_1865526267003393_72263889442743

16142995_1865526283670058_49768499770506

 

All just a matter of chasing the circle

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The main benefit for me is with shorter barrels that can't be successfully mounted between chuck and spider.

I don't generally chamber with a steady as I prefer to do it at the chuck, which is more cost effective unless you are truing a lot of actions.

But as with anything it is a tool to be used when it has an advantage or is more convenient

 

ETA: I did also get a set of their double pilot indicator rods for bore dialling, which are very nice :-)

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  • 3 weeks later...

There was a bit of initial 'chasing your tail' while getting used to it, however the more you do use it, the quicker it gets.
For long barrels through the headstock I would still use the spider, if only to take the stress/weight and stop any potential for shift.
However while doing shorter barrels through the headstock that aren't long enough to reach the spider, it's a vast improvement

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Thanks. There's always a bit of a learning curve with something new, i'm sure it will get quicker with use. My only observation would be that the set up moves everything further away from the headstock bearings. What increase in length is there over a std chuck arrangement?

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  • 2 months later...

I would like to thank bradders for taking time to do this write up on machining an AR barrel. It motivated me to machine up my first AR barrel that I chambered in 20 Practical. I closely followed your method and ended up with a properly functioning and accurate rifle. I've machined many bolt action barrels in the past and enjoyed the challenge of doing my first AR barrel. Your write up was very helpful and interesting.

 

John

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  • 4 weeks later...

Thanks for posting this, it's a fascinating insight. I had no idea how big barrel blanks were, what's the outside diameter?

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  • 1 year later...
  • 1 month later...
On 10/4/2018 at 4:04 PM, furrybean said:

Its a shame the pictures are lost on this thread, I remember reading it and it was great

Seconded. Really appreciate the effort you put into these posts @Bradders. Shame it's all lost with the photos. 

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