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Double Rifles, Single Shots & Combinations >> Single Shots & Combination Guns

Glenn_Fewless
.300 member

Reged: 08/05/08
Posts: 103
Loc: Wisconsin, USA

Re: .577 2-3/4" barrel shank diameter
19/01/09 05:44 AM

Mr. Bramble:

Thank you again. I do fit barrel threads very close, but have never tried lapping them in. I may just experiment with that. Howsomever, even with a perfect barrel fit there is so little metal left in the Farquharson receiver ring, from the extractor cuts, that I would not count on getting any extra strength from there.

I will have a look at Brownell's for the cutter. That would save setting up and grinding one.

Mr. Martini Guy:

Thanks for the information on barrel threads. I reckon if the Martini could hold a cartridge that size then the Gibbs can as well. As for the chambering, I want something "proper" for the rifle and, if we go with a .45, it will be the .461 Gibbs.

I found the proof charge for the .577 listed in one of Winfer's books: an 800 grain cylindrical slug on top of 330 grains of black powder. Proof pressure between 9 and 10 tons. That would be one big bang!

Best to all,

Glenn

Post Extras

Entire topic
Subject	Posted by	Posted on
.577 2-3/4" barrel shank diameter	Glenn_Fewless	18/01/09 04:44 AM
Re: .577 2-3/4" barrel shank diameter	peter	18/01/09 06:04 AM
Re: .577 2-3/4" barrel shank diameter	Bramble	18/01/09 06:18 AM
Re: .577 2-3/4" barrel shank diameter	Glenn_Fewless	18/01/09 09:38 AM
Re: .577 2-3/4" barrel shank diameter	Bramble	18/01/09 11:23 AM
Re: .577 2-3/4" barrel shank diameter	Glenn_Fewless	18/01/09 12:46 PM
Re: .577 2-3/4" barrel shank diameter	belgmart	19/01/09 01:14 AM
Re: .577 2-3/4" barrel shank diameter	Bramble	19/01/09 05:13 AM
Re: .577 2-3/4" barrel shank diameter	Glenn_Fewless	19/01/09 05:44 AM
Re: .577 2-3/4" barrel shank diameter	belgmart	20/01/09 05:19 AM
Re: .577 2-3/4" barrel shank diameter	Glenn_Fewless	20/01/09 08:46 AM
Re: .577 2-3/4" barrel shank diameter	belgmart	21/01/09 05:22 AM
Re: .577 2-3/4" barrel shank diameter	Glenn_Fewless	21/01/09 07:52 AM
Re: .577 2-3/4" barrel shank diameter	belgmart	22/01/09 04:56 AM

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