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

DarylS
.700 member

Reged: 10/08/05
Posts: 27005
Loc: Beautiful British Columbia, Ca...

Re: My 45-100 project
13/08/08 01:15 AM

Modern .45/70 case have been stress tested to 70,000psi and litterally dropped from the chamber. This info coming from Brian Pierce in his article on the .45/70. Starline was the brass used, I assume from the article. The strength, ie: head dimensions, etc, will be the same on your 2.6" brass. Be careful on brass neck thickness, though as it may be a bit thick, if shortened from 3 1/4" brass. You may have to turn cases, maybe not.
: SharpsNitro - I'd have no problems whatsoever with your project. l've loaded .45/70's in both Siamese Mausers and Ruger #1's to the same velocities as my .458 2", ie; 400gr. at 2,200fps and 510gr. Solids to 2,060fps with no outward pressure indications. The 2,060fps matches .458 WinMag velocities actually chronographed by Speer in a Ruger, way back in the 70's ro 80's. Obviously, the .458 was being downloaded, even at that time. You should easily make 2,150fps in your 2.6" case - probably 2,200fps with today's more modern powders.

--------------------
Daryl

"a gun without hammers is like a Spaniel without ears" King George V

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Subject	Posted by	Posted on
My 45-100 project	xsheadspace	09/07/08 11:28 PM
Re: My 45-100 project	SharpsNitro	12/08/08 02:30 PM
Re: My 45-100 project	DarylS	13/08/08 01:15 AM
Re: My 45-100 project	SharpsNitro	13/08/08 10:50 AM
Re: My 45-100 project	DarylS	14/08/08 12:22 AM
Re: My 45-100 project	xsheadspace	19/08/08 04:35 AM
Re: My 45-100 project	Sarg	19/08/08 06:03 AM
Re: My 45-100 project	DarylS	20/08/08 04:32 AM
Re: My 45-100 project	xausa	13/08/08 01:14 AM
Re: My 45-100 project	Birdhunter50	03/08/08 10:51 AM
Re: My 45-100 project	Birdhunter50	10/07/08 11:20 PM
Re: My 45-100 project	xsheadspace	11/07/08 07:31 AM
Re: My 45-100 project	Birdhunter50	24/07/08 09:31 PM
Re: My 45-100 project	DarylS	24/07/08 11:11 PM
Re: My 45-100 project	xsheadspace	25/07/08 08:41 AM
Re: My 45-100 project	xausa	29/07/08 02:21 AM
Re: My 45-100 project	xsheadspace	03/08/08 01:52 AM
Re: My 45-100 project	DarylS	03/08/08 02:32 AM
Re: My 45-100 project	450_366	27/07/08 02:09 AM
Re: My 45-100 project	xsheadspace	28/07/08 11:38 PM
Re: My 45-100 project	DarylS	29/07/08 01:41 AM
Re: My 45-100 project	tinker	25/07/08 10:32 AM
Re: My 45-100 project	Birdhunter50	10/07/08 08:53 AM
Re: My 45-100 project	Birdhunter50	10/07/08 08:57 AM
Re: My 45-100 project	Marrakai	10/07/08 01:13 PM
Re: My 45-100 project	dale	10/07/08 02:59 PM
Re: My 45-100 project	DarylS	10/07/08 09:53 PM
Re: My 45-100 project	tinker	10/07/08 04:30 AM

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