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m239
.300 member


Reged: 13/09/17
Posts: 106
Loc: Australia
Rigby style 275 barrel profile
      #319012 - 11/08/18 05:20 PM

Early stages of this project - likely on a M98 SR action I have.

I have a LW #722 factory chambered / threaded 25" bbl that I'm looking to have re-profiled along the lines of this beauty by Dorleac & Dorleac ...





Just trying to confirm the dimensions, seems from my research (including referencing the LW #5126 'H&H Small Calibre' profile) the dimensions I think I should be looking at are something like:



A: ~26mm
B: ~12mm
C: ~22.81mm (as per the LW #5126)
D: 29mm (current profile) - front ring of action OD=33mm (or 1.1" for those from nations that are still catching up to metric ) , so ~2mm 'step down' seems to look about right

The LW 'H&H Small Calibre' profile is below (but does not have such a pronounced scallop from the Nock's form as what I'm ideally after)



I'd welcome any input from the brains trust here - especially any who have an old Rigby etc, have taken measurements from one or have built in this style.

TIA

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Waidmannsheil
.400 member


Reged: 19/04/13
Posts: 2446
Loc: Melbourne Australia
Re: Rigby style 275 barrel profile [Re: m239]
      #319013 - 11/08/18 06:24 PM

I have barrel dimensions taken from a 275 Rigby with 25" barrel. I will try and find them and let you know.

Matt.

--------------------
There is nothing wrong with vegetarian food, so long as there is meat with it.

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Waidmannsheil
.400 member


Reged: 19/04/13
Posts: 2446
Loc: Melbourne Australia
Re: Rigby style 275 barrel profile [Re: Waidmannsheil]
      #319014 - 11/08/18 06:56 PM

I have found the dimensions. They are as follows:

Overall length not including thread 620mm LG
D- Dia 28.2mm
C- Dia 22mm
D- 24.5mm LG
B- 13.5mm LG
Muzzle Dia 15mm

I found the muzzle diameter to large and therefore the barrel profile to heavy but it is an original Rigby.

Hope this helps or is at least of some interests.

Matt.

--------------------
There is nothing wrong with vegetarian food, so long as there is meat with it.

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m239
.300 member


Reged: 13/09/17
Posts: 106
Loc: Australia
Re: Rigby style 275 barrel profile [Re: Waidmannsheil]
      #319015 - 11/08/18 07:11 PM

thanks a lot Matt

certainly of interest - I'm not sure there is not a 'right' set of numbers - depends a lot on individual preference (as it always has).

thanks again

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