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Double Rifles, Single Shots & Combinations >> Building Double Rifles & Gunsmithing

eagle27
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Reged: 24/01/09
Posts: 1124
Loc: Nelson, New Zealand
Re: Backthrust table - anyone have one?
      21/07/15 07:51 PM

Wikipedia has a good article on measuring backthrust and lists backthrust for some common cartridges- Google it,

Carpetsahib is correct in that it is the internal head area (on which the powder exerts the pressure) that is used in the calculation but you can also use the outside case head diameter in the calculation which then provides a safety margin for those loads that can give higher peak pressures.

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Subject Posted by Posted on
* Backthrust table - anyone have one? Grenadier 20/07/15 10:48 AM
. * * Re: Backthrust table - anyone have one? Carpetsahib   21/07/15 01:05 AM
. * * Re: Backthrust table - anyone have one? Grenadier   21/07/15 04:43 AM
. * * Re: Backthrust table - anyone have one? Carpetsahib   21/07/15 10:01 AM
. * * Re: Backthrust table - anyone have one? Grenadier   21/07/15 06:20 PM
. * * Re: Backthrust table - anyone have one? eagle27   21/07/15 07:51 PM
. * * Re: Backthrust table - anyone have one? Carpetsahib   22/07/15 12:18 AM
. * * Re: Backthrust table - anyone have one? Bergen   27/11/15 10:49 AM
. * * Re: Backthrust table - anyone have one? Matabele   28/11/15 11:01 PM

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