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Pardini .32 ACP Lands?

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Post by beeser 5/12/2015, 1:38 am

I noticed that there are two parallel lines on each land of a Pardini .32 ACP barrel.  I've never seen this before.  What is the purpose of this type of rifling?

beeser

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Post by Wes Lorenz 5/13/2015, 7:08 am

Probably caused when the reamer was extracted in the lathe.

Wes Lorenz

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Post by jerry lehrer 5/15/2015, 6:22 pm

Scott,

The chamber reamer should not get near a finished rifling land.

Jerry

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Post by Wes Lorenz 5/15/2015, 6:40 pm

Hi Jerry,
I think he is talking about the rifled bore and I was suggesting gauled material on the bore reamer or maybe even the rifleing slug.
Wes

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Post by TampaTim 5/16/2015, 2:07 am

A picture would be great to look at.

TampaTim

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Post by jerry lehrer 5/16/2015, 6:27 pm

Scott,

The "rifling slug" or BUTTON might have had some grit that produced the artifacts that are seen.

I feel certain that Dave Wilson could get to the cause. 

One needs a highly specialized borescope-camera to investigate.  I no longer have access to
that piece of equipment.

jerry lehrer

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