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Wedgetail
.275 member


Reged: 22/07/20
Posts: 93
Loc: Australia- NSW
Re: 7x57 Type B Oberndorf style build
      24/07/20 05:04 PM

Ok chasing a little more advice - When cutting the barrel threads, the general consensus is to make the tenon the correct length so the inner C ring and outer leading edge contact their respective surfaces at the same time, maybe a thou or two one way depending on who you speak to. HOWEVER, these model Bs (as spud’s diagram shows) are like the military barrels in that their shoulder OD is essentially the same as the thread diameter. Meaning there is no shoulder to seat against. In general, the inner C ring isn’t 100% square (mine is 0.004” out cf the leading edge, which is 0.002” out). It seems unusual for people to lap the inner C ring, but not unheard of.

So, what is the standard for installing k98 or model B type barrels that have no shoulder? Do you lap the inner C ring to be 100% square? Do you not worry about 0.002”? Do I try and obtain (or make) a C ring lapping tool? Other option is I could get the shoulder say 0.050” - 0.100” wider to give it a shoulder - wouldn’t probably be overly noticeable. Then I could cut the tenon say 0.002” short and have most of the bearing surface on the (easily squared) leading edge)? I won’t be scoping this rifle, will the difference be noticeable? I doubt the inner rings wear, so I assume they wouldn’t have minded the 0.002” discrepancy at the oberndorf factory.

Edited by Wedgetail (24/07/20 05:07 PM)

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Subject Posted by Posted on
* 7x57 Type B Oberndorf style build Wedgetail 22/07/20 08:45 PM
. * * Re: 7x57 Type B Oberndorf style build Rothhammer1   23/07/20 01:42 AM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   23/07/20 07:53 AM
. * * Re: 7x57 Type B Oberndorf style build Rothhammer1   23/07/20 02:49 PM
. * * Re: 7x57 Type B Oberndorf style build Spud303   23/07/20 04:13 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   24/07/20 06:02 AM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   24/07/20 04:15 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   24/07/20 05:04 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   24/07/20 06:30 PM
. * * Re: 7x57 Type B Oberndorf style build Spud303   24/07/20 07:17 PM
. * * Re: 7x57 Type B Oberndorf style build metal   24/07/20 08:05 PM
. * * Re: 7x57 Type B Oberndorf style build vykkagur   25/07/20 01:53 AM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   28/07/20 06:38 AM
. * * Re: 7x57 Type B Oberndorf style build Huvius   28/07/20 08:08 AM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   28/07/20 07:31 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   09/07/22 03:28 PM
. * * Re: 7x57 Type B Oberndorf style build NitroXAdministrator   09/07/22 11:03 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   10/12/22 09:41 AM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   15/01/23 01:20 PM
. * * Re: 7x57 Type B Oberndorf style build DarylS   15/01/23 02:02 PM
. * * Re: 7x57 Type B Oberndorf style build metal   15/01/23 09:03 PM
. * * Re: 7x57 Type B Oberndorf style build 93x64mm   15/01/23 10:35 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   02/06/23 07:36 PM
. * * Re: 7x57 Type B Oberndorf style build bwanabobftw   03/06/23 07:14 AM
. * * Re: 7x57 Type B Oberndorf style build 93x64mm   03/06/23 08:01 AM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   10/09/23 01:17 PM
. * * Re: 7x57 Type B Oberndorf style build 93x64mm   11/09/23 06:31 AM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   02/06/24 06:35 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   12/06/24 02:02 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   07/07/24 01:00 PM
. * * Re: 7x57 Type B Oberndorf style build lancaster   07/07/24 02:54 PM
. * * Re: 7x57 Type B Oberndorf style build 93x64mm   07/07/24 04:35 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   07/07/24 09:23 PM
. * * Re: 7x57 Type B Oberndorf style build JDL   23/07/24 08:23 AM
. * * Re: 7x57 Type B Oberndorf style build Rule303   23/07/24 09:18 AM
. * * Re: 7x57 Type B Oberndorf style build metal   24/07/24 06:02 PM
. * * Re: 7x57 Type B Oberndorf style build DarylS   25/07/24 01:17 AM
. * * Re: 7x57 Type B Oberndorf style build K98   16/08/24 10:48 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   21/09/24 05:01 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   18/10/24 06:35 PM
. * * Re: 7x57 Type B Oberndorf style build fjrdoc   19/10/24 01:44 AM
. * * Re: 7x57 Type B Oberndorf style build lancaster   19/10/24 04:01 AM
. * * Re: 7x57 Type B Oberndorf style build 93x64mm   19/10/24 06:16 AM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   15/11/24 07:26 PM
. * * Re: 7x57 Type B Oberndorf style build 93x64mm   16/11/24 07:29 AM
. * * Re: 7x57 Type B Oberndorf style build Rule303   16/11/24 08:15 AM
. * * Re: 7x57 Type B Oberndorf style build Marrakai   16/11/24 12:50 PM
. * * Re: 7x57 Type B Oberndorf style build lancaster   16/11/24 04:53 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   20/10/24 06:56 AM
. * * Re: 7x57 Type B Oberndorf style build metal   21/10/24 11:20 AM
. * * Re: 7x57 Type B Oberndorf style build JDL   23/10/24 01:00 AM
. * * Re: 7x57 Type B Oberndorf style build eagle27   02/06/24 08:25 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   03/06/24 08:26 PM
. * * Re: 7x57 Type B Oberndorf style build Rothhammer1   29/07/20 03:51 AM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   31/07/20 07:34 AM
. * * Re: 7x57 Type B Oberndorf style build Rothhammer1   10/11/20 11:37 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   12/11/20 05:49 AM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   28/12/20 07:17 PM
. * * Re: 7x57 Type B Oberndorf style build Nailcreek   19/01/21 01:13 AM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   19/01/21 09:34 PM
. * * Re: 7x57 Type B Oberndorf style build 93x64mm   19/01/21 10:41 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   15/08/21 07:56 AM
. * * Re: 7x57 Type B Oberndorf style build Huvius   29/07/20 07:42 AM
. * * Re: 7x57 Type B Oberndorf style build Rothhammer1   29/07/20 07:53 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   31/07/20 08:04 AM
. * * Re: 7x57 Type B Oberndorf style build Rothhammer1   31/07/20 01:30 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   03/08/20 06:46 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   04/08/20 07:17 PM
. * * Re: 7x57 Type B Oberndorf style build 93x64mm   04/08/20 10:17 PM
. * * Re: 7x57 Type B Oberndorf style build Marrakai   05/08/20 09:15 AM
. * * Re: 7x57 Type B Oberndorf style build Rothhammer1   05/08/20 02:55 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   06/08/20 08:45 PM
. * * Re: 7x57 Type B Oberndorf style build themauserkid   07/08/20 12:05 AM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   08/08/20 07:08 AM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   13/08/20 07:21 AM
. * * Re: 7x57 Type B Oberndorf style build Marrakai   13/08/20 10:15 AM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   14/08/20 06:55 AM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   14/08/20 07:03 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   14/08/20 08:05 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   24/08/20 10:05 AM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   08/09/20 10:10 AM
. * * Re: 7x57 Type B Oberndorf style build Waidmannsheil   08/09/20 11:35 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   09/09/20 06:23 AM
. * * Re: 7x57 Type B Oberndorf style build themauserkid   09/09/20 10:31 AM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   09/09/20 05:54 PM
. * * Re: 7x57 Type B Oberndorf style build kodiak   10/09/20 08:05 PM
. * * Re: 7x57 Type B Oberndorf style build aromakr   13/09/20 05:10 AM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   13/09/20 08:40 PM
. * * Re: 7x57 Type B Oberndorf style build themauserkid   14/09/20 03:26 AM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   20/09/20 08:14 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   10/11/20 07:12 PM
. * * Re: 7x57 Type B Oberndorf style build themauserkid   29/07/20 05:02 AM
. * * Re: 7x57 Type B Oberndorf style build themauserkid   29/07/20 03:02 AM
. * * Re: 7x57 Type B Oberndorf style build Rothhammer1   29/07/20 08:45 PM
. * * Re: 7x57 Type B Oberndorf style build themauserkid   29/07/20 11:23 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   31/07/20 08:00 AM
. * * Re: 7x57 Type B Oberndorf style build Rothhammer1   28/07/20 08:06 AM
. * * Re: 7x57 Type B Oberndorf style build Rothhammer1   23/07/20 04:46 PM
. * * Re: 7x57 Type B Oberndorf style build Rothhammer1   23/07/20 05:19 PM
. * * Re: 7x57 Type B Oberndorf style build MikeRowe   23/07/20 08:07 AM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   23/07/20 11:56 AM
. * * Re: 7x57 Type B Oberndorf style build Spud303   23/07/20 10:18 AM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   23/07/20 11:55 AM
. * * Re: 7x57 Type B Oberndorf style build 93x64mm   22/07/20 09:49 PM
. * * Re: 7x57 Type B Oberndorf style build xausa   22/07/20 11:25 PM
. * * Re: 7x57 Type B Oberndorf style build Wedgetail   23/07/20 07:31 AM

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