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CptCurlAdministrator
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Reged: 01/05/04
Posts: 5307
Loc: Fincastle, Botetourt County, V...
Re: Clam Shell Action
      15/11/05 02:08 PM

MauserRifle,

The purpose of the "clamshell" design is strength, just as H&H (and others) put "bolsters" on the sides of their actions. Think of this reinforcing web as a super bolster.

There is more stress on the action concentrated in the 90 degree angle were the standing breech meets the bars than anywhere else. This is a way to relieve or spread that stress, like a gusset in structural steel.

I can think of no disadvantage to this system, other than the high cost of machining the complex shape.

To my knowledge, and as stated in the DGJ article I previously mentioned, no rifles are known to have been made on this design since the outbreak of WW2, and probably considerably earlier.

To give you a better idea of how the action is milled, I just shot this photo of the action face with the barrels off:



Regards,
Curl

--------------------
RoscoeStephenson.com

YOUR DOUBLE RIFLE IS YOUR BEST FRIEND.



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Entire topic
Subject Posted by Posted on
* Clam Shell Action MauserRifle 11/11/05 06:28 PM
. * * Re: Clam Shell Action 500Nitro   14/11/05 05:18 AM
. * * Re: Clam Shell Action mickey   14/11/05 05:58 AM
. * * Re: Clam Shell Action MauserRifle   14/11/05 09:15 AM
. * * Re: Clam Shell Action 500Nitro   14/11/05 09:41 AM
. * * Re: Clam Shell Action CptCurlAdministrator   14/11/05 07:37 AM
. * * Re: Clam Shell Action MauserRifle   14/11/05 09:24 AM
. * * Re: Clam Shell Action CptCurlAdministrator   15/11/05 02:08 PM
. * * Re: Clam Shell Action MauserRifle   15/11/05 05:06 PM
. * * Re: Clam Shell Action CptCurlAdministrator   15/11/05 10:54 PM
. * * Re: Clam Shell Action mickey   14/11/05 07:47 AM
. * * Re: Clam Shell Action CptCurlAdministrator   14/11/05 08:14 AM
. * * Re: Clam Shell Action mickey   14/11/05 08:56 AM
. * * Re: Clam Shell Action tinker   14/11/05 08:18 AM
. * * Re: Clam Shell Action 500Nitro   11/11/05 06:43 PM
. * * Re: Clam Shell Action MauserRifle   11/11/05 07:02 PM
. * * Re: Clam Shell Action 500Nitro   11/11/05 07:40 PM
. * * Re: Clam Shell Action MauserRifle   11/11/05 07:50 PM
. * * Re: Clam Shell Action sbs470   12/11/05 12:46 AM
. * * Re: Clam Shell Action MauserRifle   12/11/05 06:56 AM
. * * Re: Clam Shell Action Marrakai   12/11/05 01:21 PM
. * * Re: Clam Shell Action MauserRifle   12/11/05 01:53 PM
. * * Re: Clam Shell Action tinker   12/11/05 03:53 PM
. * * Re: Clam Shell Action Peterb   12/11/05 04:03 AM
. * * Re: Clam Shell Action mickey   11/11/05 07:30 PM
. * * Re: Clam Shell Action MauserRifle   11/11/05 07:36 PM

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