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throat too short

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Unread 05-09-2010, 10:09 PM
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Join Date: Dec 2007
Location: Youngsville, NC
Posts: 434
Re: throat too short

It depends on your skill level and access to the necessary tooling.

Have a local machine shop make you a bushing .701 OD with a .4375 ID appoximately 2.5" long. The back side needs to be turned 90 degrees to the bore.

You will need a PT&G piloted throating reamer with the correct bushing.

You will need a PT&G Uni Throater.

I recomend a Lambeth/Kiff Micrometer Adjustable Reamer Stop.

It can be done with a with a .4375 ID Bushing with a locking set screw.

Absent the Lambeth/Kiff Micrometer Adjustable Reamer Stop you will need some form of measuring devices IE: feeler gauges and micrometers.

Remove the throat in incremental steps as you cann't put metal back.

Measure throat and cut a little, then measure again.

If you cut to much you will have to set the barrel back.

Good Luck

Nat Lambeth

ps. the tooling for doing this job will cost approximately:

Piloted Throating Reamer $698.00

Additional bushings $11.00 each

PT&G Uni Throater $69.00

Lambeth/Kiff Micrometer Adjustable Reamer Stop $189.00

PT&G Reamer bushing $30.00

Bolt Race Bushing .701 OD .4375 ID by 2.5" approximately $35.00

Barrel Set back $225.00

Last edited by Rustystud; 05-09-2010 at 10:16 PM.
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