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Juenke Machines being manufactured gain

 
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  #1  
Old 11-11-2013, 05:59 PM
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Juenke Machines being manufactured gain

Just found out that the BulletDoctor (www.bulletdoctor.com) is now manufacturing their version of the Juenke machines for testing bullets and cases.

These machines have been out of production since Vern Juenke retired yrs ago.

Right now used ones are premium priced and snapped up anytime one comes available.

I am not sure what the going price is or how fast the delivery is.

Len, they are looking for dealers.
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Old 11-11-2013, 06:38 PM
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Re: Juenke Machines being manufactured gain

I'm sorry for the stupid question...But what exactly does it do? What info do you gather from using this machine?

Pardon my ignorance, but I am curious...
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The 284 is to the STW what a tricycle is to a Ninja.
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Old 11-11-2013, 07:36 PM
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Re: Juenke Machines being manufactured gain

As I understand it, they tell you the concentricity of the bullets themselves, as in, the relationship of jacket to core. One of my former rifle builders who retired said the Swift Scirocco was one of the most trued concentric bullets he ever spun on his machine. I am guessing it tells you how centered the core is to the jacket.
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Old 11-11-2013, 07:38 PM
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Re: Juenke Machines being manufactured gain

Quote:
Originally Posted by Derek M. View Post
As I understand it, they tell you the concentricity of the bullets themselves, as in, the relationship of jacket to core. One of my former rifle builders who retired said the Swift Scirocco was one of the most trued concentric bullets he ever spun on his machine. I am guessing it tells you how centered the core is to the jacket.
Hmmm, how much does one of them things run? Might be interested in snatching one up just to play around with.
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"I'm just a peckerwood who lives in the hills with too many guns..." - Bob Lee Swagger

"Give me a minute...I'm good. Give me an hour...I'm great. Give me 6 months...And I'm unbeatable." - Col. Hannibal Smith

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Quote:
Originally Posted by WildRose View Post
The 284 is to the STW what a tricycle is to a Ninja.
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  #5  
Old 11-11-2013, 07:57 PM
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Re: Juenke Machines being manufactured gain

It's air-coupled ultrasonic testing.
The interface between copper jacket and lead core represents an accoustic impedance shift, causing reflection timing that shifts with jacket variance to the transducer.

Doesn't take much investigation to understand why these are expensive
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Old 11-11-2013, 08:29 PM
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Re: Juenke Machines being manufactured gain

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Originally Posted by Mikecr View Post
It's air-coupled ultrasonic testing.
The interface between copper jacket and lead core represents an accoustic impedance shift, causing reflection timing that shifts with jacket variance to the transducer.

Doesn't take much investigation to understand why these are expensive
If you can get an original buy it. Mudrunner...more than $100.00 and less than $5,000.00. I think I've seen one for sale in 4 years.....and the POA was more than I had in my wallet.

Esentially it's a Hall effect sensor acting on a non ferrous material.

You can't see inside a pill and if you section it to see inside, it's worthless. This machine sees inside, sort of.

For those of us who can't afford one, an ocassional flyer is acceptable....
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Old 11-11-2013, 08:49 PM
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Re: Juenke Machines being manufactured gain

I thought the originals were going for around $500
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