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Author Topic: putting a new crown on an in-line  (Read 494 times)

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Offline manofthe45

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putting a new crown on an in-line
« on: March 03, 2009, 06:28:49 PM »
Building a in-line pistol out of an old lk-93 by knight.  How do I go about recrowning the barrel after it gets cut.  Normally i would have someone in the field do it for me but the wife lost her job and this project is getting done by the seat of my pants.  I have access to pretty much evry tool I could need except a milling machine.
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Offline Keith L

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Re: putting a new crown on an in-line
« Reply #1 on: March 03, 2009, 06:35:13 PM »
I guess I would chuck it in a lathe were that available.  I suppose you could carefully saw the barrel and then file it straight with a file and a square.  Then use lapping compound and a carriage bolt chucked in an electric drill to finish things.

Is this legal, making a pistol from a rifle where you live?
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Offline trotterlg

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Re: putting a new crown on an in-line
« Reply #2 on: March 03, 2009, 06:44:46 PM »
Chuck it up in a lathe, put a center in the bore and turn the barrel round at the end.  Now put it in a steady rest and set the compound to 11 degrees and cut a 11 degree target crown on it.  This is probably the only way to get a really perfect crown on a barrel.  Larry
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Offline manofthe45

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Re: putting a new crown on an in-line
« Reply #3 on: March 03, 2009, 07:03:57 PM »
Quote from: Keith L on March 03, 2009, 06:35:13 PM
I guess I would chuck it in a lathe were that available.  I suppose you could carefully saw the barrel and then file it straight with a file and a square.  Then use lapping compound and a carriage bolt chucked in an electric drill to finish things.

Is this legal, making a pistol from a rifle where you live?

Since it is a ML and not on a firearm frame like the nef or encore/contender it is a non-issue according to the BATF agent I spoke too.
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