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Double Rifles, Single Shots & Combinations >> Double Rifles
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4seventy
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Reged: 07/05/03
Posts: 2210
Loc: Queensland Australia
Re: Pressing bullets and molds
      20/02/14 08:53 AM

Bidyanus1,
Yes you can swage .458" bullets up to .470", and you can also draw .474" bullets down to .470".
However in your case you would need to be certain that the chamber neck of both barrels will accept such a large increase in diameter.

Seating a .470" bullet in place of a .458" bullet, will increase the cartridge neck diameter by .012".

While the groove diameter of your barrels may be oversize by that amount, the chamber neck/s may not.
The cartridge/s might not chamber at all, or far worse might chamber with the cartridge necks jammed tight in the chamber/s, causing a big increase in pressures.

I suggest you measure the chamber neck diameters of both barrels before even thinking about using .470" bullets in your double.

Please keep us up to date on what you find.

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Entire topic
Subject Posted by Posted on
* Pressing bullets and molds Bidyanus1 19/02/14 04:30 PM
. * * Re: Pressing bullets and molds 4seventy   21/02/14 11:25 AM
. * * Re: Pressing bullets and molds DarylS   21/02/14 12:28 PM
. * * Re: Pressing bullets and molds Englishman   22/02/14 10:55 PM
. * * Re: Pressing bullets and molds DarylS   23/02/14 04:45 AM
. * * Re: Pressing bullets and molds 4seventy   20/02/14 08:53 AM
. * * Re: Pressing bullets and molds Viking338   19/02/14 08:56 PM
. * * Re: Pressing bullets and molds Huvius   20/02/14 12:46 AM
. * * Re: Pressing bullets and molds DarylS   20/02/14 02:35 AM
. * * Re: Pressing bullets and molds dpcd67   20/02/14 04:11 AM
. * * Re: Pressing bullets and molds Bidyanus1   20/02/14 09:18 AM
. * * Re: Pressing bullets and molds DarylS   20/02/14 10:25 AM
. * * Re: Pressing bullets and molds DarylS   21/02/14 03:06 AM
. * * Re: Pressing bullets and molds Bidyanus1   21/02/14 09:10 AM
. * * Re: Pressing bullets and molds Bidyanus1   21/02/14 11:08 AM
. * * Re: Pressing bullets and molds 4seventy   23/02/14 10:38 AM
. * * Re: Pressing bullets and molds DarylS   23/02/14 12:10 PM
. * * Re: Pressing bullets and molds Bidyanus1   24/02/14 08:47 AM
. * * Re: Pressing bullets and molds 4seventy   25/02/14 04:50 PM

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