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

Bramble
.375 member

Reged: 29/07/06
Posts: 950
Loc: England

Re: 12GaFH double Rifle project
15/12/08 08:29 PM

Okey dokey. The getting around the gun laws bit I understand. My muzzle loading pistol ( see the thread below) was built for similar reasons.
http://forums.nitroexpress.com/showflat....true#Post121261

Why not threaded all the way was for the reason that you mentioned. To get a really good joint I tinned both threads and assembled it all hot. Now that is not too bad on an inch of thread but a bitch potentially on the full thing. The first barrel is OK, but you need to make an expanding brass mandral to fit inside the barrel for the second one to get enough purchase to wind the hot barrel in. Secondly you don't need to. 1" x 7/8 BSF is not far off a SR mauser thread and that is good for 60K PSI without the solder. Concentricity is going to be a problem perhaps with a full thread because of the tapers involved. To single point thread it would need too much jigging and messing around. I just shortened the mandral (tenon) and run the tap in with the tailstock.
Watch the wood on the Zabala at the head, it is not the greatest design for heavy recoil.

Good luck with the project.

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Subject	Posted by	Posted on
12GaFH double Rifle project	Robgunbuilder	15/12/08 03:42 AM
Re: 12GaFH double Rifle project	mehulkamdar	22/12/08 10:30 AM
Re: 12GaFH double Rifle project	Robgunbuilder	23/12/08 05:40 AM
Re: 12GaFH double Rifle project	Ron_Vella	23/12/08 01:47 PM
Re: 12GaFH double Rifle project	Robgunbuilder	24/12/08 05:55 AM
Re: 12GaFH double Rifle project	Ron_Vella	24/12/08 01:49 PM
Re: 12GaFH double Rifle project	Robgunbuilder	24/12/08 03:49 PM
Re: 12GaFH double Rifle project	Ron_Vella	24/12/08 11:46 PM
Re: 12GaFH double Rifle project	DarylS	25/12/08 12:05 AM
Re: 12GaFH double Rifle project	Bramble	25/12/08 01:57 AM
Re: 12GaFH double Rifle project	Ron_Vella	25/12/08 04:17 AM
Re: 12GaFH double Rifle project	Ron_Vella	25/12/08 04:29 AM
Re: 12GaFH double Rifle project	Robgunbuilder	25/12/08 04:40 AM
Re: 12GaFH double Rifle project	CptCurl	28/12/08 12:10 AM
Re: 12GaFH double Rifle project	450_366	15/12/08 07:40 AM
Re: 12GaFH double Rifle project	Robgunbuilder	15/12/08 08:23 AM
Re: 12GaFH double Rifle project	Bramble	15/12/08 10:42 AM
Re: 12GaFH double Rifle project	Bramble	15/12/08 11:24 AM
Re: 12GaFH double Rifle project	Robgunbuilder	15/12/08 02:56 PM
Re: 12GaFH double Rifle project	Bramble	15/12/08 08:29 PM
Re: 12GaFH double Rifle project	Robgunbuilder	16/12/08 04:31 AM
Re: 12GaFH double Rifle project	Bramble	16/12/08 05:43 AM
Re: 12GaFH double Rifle project	Robgunbuilder	16/12/08 08:26 AM
Re: 12GaFH double Rifle project	DarylS	16/12/08 08:48 AM
Re: 12GaFH double Rifle project	Bramble	16/12/08 10:38 AM
Re: 12GaFH double Rifle project	Robgunbuilder	16/12/08 12:11 PM
Re: 12GaFH double Rifle project	Bramble	16/12/08 12:30 PM
Re: 12GaFH double Rifle project	Robgunbuilder	16/12/08 12:50 PM
Re: 12GaFH double Rifle project	Al_in_Mi	21/12/08 08:52 PM
Re: 12GaFH double Rifle project	Robgunbuilder	22/12/08 03:52 AM
Re: 12GaFH double Rifle project	DarylS	15/12/08 05:16 AM
Re: 12GaFH double Rifle project	Robgunbuilder	15/12/08 05:37 AM
Re: 12GaFH double Rifle project	peter	15/12/08 06:50 AM

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