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-   -   Forcing Cones Question (https://parkerguns.org/forums/showthread.php?t=29533)

EddyDehmer 03-04-2020 11:11 AM

Garth, thanks as I have to run another gun up to Pat Laib as he has checked my first Parker I originally bought. I appreciate the help with this. Do you know where people send barrels out to get inspected for cracks that can’t be seen? I’m just curious about that.

Garth Gustafson 03-04-2020 12:09 PM

The experts will chime in but typically cracks are much less of a concern with modern fluid steel barrels than with Damascus or twist barrels. A visual inspection and measurements by a qualified smith for bulges, deep pitting and any imperfections in the metal combined with the use of reasonable loads should put your mind at ease.

Bruce Day 03-04-2020 12:49 PM

All this concern over a 5 percent chamber pressure increase ?

Drew Hause 03-04-2020 01:39 PM

http://parkerguns.org/forums/showthread.php?t=29213

Bruce Day 03-04-2020 03:41 PM

Who would have thought that MRI analysis of a Damascus or Twist composite barrel would show hundreds of linear density differences?

Drew Hause 03-04-2020 04:43 PM

No steel in the Magnetic Resonance Imaging room Bruce. That donut thingie is a giant magnet :eek:

This is a negative image radiograph (X-ray; not MRI) of a damascus barrel. The difficulty is in differentiating pits from defects within the wall.

http://pic20.picturetrail.com:80/VOL.../408815326.jpg


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