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Barrel Crown

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Post by wingnut170 Thu Feb 09, 2023 8:16 am

I have checked several 22 target pistols, Pardini, MG-2, Walther etc. and noticed none of them have the barrels crowned. Is there a reason why not or isn't it necessary. TIA

wingnut170

Posts : 62
Join date : 2019-01-30

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Post by tomd999 Thu Feb 09, 2023 8:40 am

Hiya,

Technically they are "crowned", a ~45 degree "deburr" at least on the Pardini's and Walther's I have. 

I had a 1st gen Pardini SPE that had a habit of throwing one out of the group, I had Mike Larocca recut the muzzle of the barrel to square it to the CL of the bore and put an small bore rifle type recessed negative degree crown on it, that took care of the flyers and tightened up the overall group size. I did the same on a GSP, it made no improvement whatsoever so I can't tell you if it makes a difference in every case. Maybe if your having a problem like my Pardini had you try a recrown, otherwise leave it alone.

My 2 cents, no actual value,
Tom

tomd999

Posts : 86
Join date : 2017-02-26

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Post by wingnut170 Thu Feb 09, 2023 8:52 am

tomd999 wrote:Hiya,

Technically they are "crowned", a ~45 degree "deburr" at least on the Pardini's and Walther's I have. 

I had a 1st gen Pardini SPE that had a habit of throwing one out of the group, I had Mike Larocca recut the muzzle of the barrel to square it to the CL of the bore and put an small bore rifle type recessed negative degree crown on it, that took care of the flyers and tightened up the overall group size. I did the same on a GSP, it made no improvement whatsoever so I can't tell you if it makes a difference in every case. Maybe if your having a problem like my Pardini had you try a recrown, otherwise leave it alone.

My 2 cents, no actual value,
Tom
Thanks

wingnut170

Posts : 62
Join date : 2019-01-30

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Post by bruce martindale Fri Feb 10, 2023 1:36 pm

Where is Mr Larocca located?

bruce martindale

Posts : 1639
Join date : 2011-07-29
Location : Upstate NY

https://www.bullseyeforum.net/t20747-feeling-center-a-10-bullsey

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