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

DoubleD
.400 member

Reged: 23/11/03
Posts: 2437
Loc: Retired in Oklahoma

Re: single shot actions for .577 nitro?
11/05/15 02:23 PM

Okay, I'm back.

It doesn't fit the Martini-Henry. Well at least a 557 2 2/3" NE with a 650 gr. cast lead bullet doesn't fit. So of course a 3" won't either.

The rim binds in the rear of the breech block.

Now someone is going say you can grind the load trough in the breech block to get the cartridge to feed.

The breech block of the Martini is the "Locking lugs" of the design. This knuckle rests in the knuckle seat at the rear of the action.

The knuckle bears the load of the cartridge on firing. The knuckle attaches to the rear of the block adjacent to the load trough.

Any deepening of the trough that is done for the 577 NE to fit has to be done in the rear of the trough adjacent to the knuckle, effectively weakening it. Looking at this, it appears to be a modification that "will" weaken, not "may " weaken.

I also checked a Francotte large action and it won't work either.

What will work is a Greener Martini. I have a 577 2 3/4" NE built on that action. Works just fine.

--------------------
DD, Ret.

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Subject	Posted by	Posted on
single shot actions for .577 nitro?	Tom_H	21/03/15 05:24 AM
Re: single shot actions for .577 nitro?	Birdhunter50	11/05/15 09:57 PM
Re: single shot actions for .577 nitro?	mehulkamdar	21/03/15 09:23 AM
Re: single shot actions for .577 nitro?	AkMike	21/03/15 10:18 AM
Re: single shot actions for .577 nitro?	Tom_H	21/03/15 11:37 PM
Re: single shot actions for .577 nitro?	nitro450exp	22/03/15 03:43 AM
Re: single shot actions for .577 nitro?	Tom_H	23/03/15 09:32 AM
Re: single shot actions for .577 nitro?	bouldersmith	24/03/15 01:21 AM
Re: single shot actions for .577 nitro?	500Boswell	24/03/15 05:41 PM
Re: single shot actions for .577 nitro?	AkMike	25/03/15 06:22 AM
Re: single shot actions for .577 nitro?	Tom_H	26/03/15 10:30 AM
Re: single shot actions for .577 nitro?	Huvius	26/03/15 01:07 PM
Re: single shot actions for .577 nitro?	Tom_H	26/03/15 09:22 PM
Re: single shot actions for .577 nitro?	buckbrush	11/05/15 01:16 PM
Re: single shot actions for .577 nitro?	DoubleD	11/05/15 01:46 PM
Re: single shot actions for .577 nitro?	DoubleD	11/05/15 02:23 PM
Re: single shot actions for .577 nitro?	Ash	11/05/15 04:51 PM
Re: single shot actions for .577 nitro?	DoubleD	12/05/15 12:27 AM
Re: single shot actions for .577 nitro?	DoubleD	12/05/15 03:37 PM
Re: single shot actions for .577 nitro?	Marrakai	11/05/15 07:50 PM
Re: single shot actions for .577 nitro?	spinna	11/05/15 09:34 PM

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