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4seventy
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Reged: 07/05/03
Posts: 2210
Loc: Queensland Australia
Re: Slugged Bore Daniel Fraser 450/450 3 1/4"
      21/04/10 05:35 PM

With groove measurement, whenever an odd size shows up which appears to be a long way out of spec, I reckon it's a good idea to start again, re-slug both bores, and re-measure.
You also need to be 100% certain that the slug is actually in full contact with the groove diameter, and that the micrometer measurement is taken accurately.

If they really do turn out to be .4035", personally I'd be getting a reducing die made for .408" bullets, to take them down around .404" to .405".

Firstly though, I'd want to be dead sure that the groove measurement is correct.

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Entire topic
Subject Posted by Posted on
* Slugged Bore Daniel Fraser 450/450 3 1/4" 577500WR 21/04/10 03:06 PM
. * * Re: Slugged Bore Daniel Fraser 450/450 3 1/4" 500Nitro   21/04/10 03:21 PM
. * * Re: Slugged Bore Daniel Fraser 450/450 3 1/4" AkMike   21/04/10 03:51 PM
. * * Re: Slugged Bore Daniel Fraser 450/450 3 1/4" 500Nitro   21/04/10 04:04 PM
. * * Re: Slugged Bore Daniel Fraser 450/450 3 1/4" AkMike   21/04/10 04:53 PM
. * * Re: Slugged Bore Daniel Fraser 450/450 3 1/4" 4seventy   21/04/10 05:35 PM
. * * Re: Slugged Bore Daniel Fraser 450/450 3 1/4" 500Nitro   21/04/10 05:51 PM
. * * Re: Slugged Bore Daniel Fraser 450/450 3 1/4" AkMike   22/04/10 12:43 AM
. * * Re: Slugged Bore Daniel Fraser 450/450 3 1/4" DarylS   22/04/10 02:20 AM
. * * Re: Slugged Bore Daniel Fraser 450/450 3 1/4" 577500WR   22/04/10 03:21 AM
. * * Re: Slugged Bore Daniel Fraser 450/450 3 1/4" DM   30/04/10 11:03 AM
. * * Re: Slugged Bore Daniel Fraser 450/450 3 1/4" DarylS   30/04/10 11:50 PM

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