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Shooting & Reloading - Mausers, Big Bores and others >> Big Bore Rifles

Marrakai
.416 member

Reged: 09/01/03
Posts: 3557
Loc: Darwin, Top End of Australia

Re: Anyone run into this problem?
03/05/15 10:49 AM

FWIW my take is simply slow sealing of the case mouth in the chamber at firing.
As other have mentioned, this is usually evident at the shoulder or upper case body, and it happens every so often with my .400 Jeffery using "standard" regulating loads of AR2213.
Nothing to worry about IMHO; if in the case body or shoulder they pop out when next fired, if in the neck they pop out when sized.
Having said that, if they happen frequently, I would neck-ream the cases if thicker than standard, or at least neck-anneal, as they are possibly too hard in the neck area to seal properly. This is good house-keeping practice for case longevity anyway.

Of course, it could be the opposite....

Like Daryl implies, a partial ignition or 'low pressure event' will usually show up on the target. A minor chamber-sealing shortfall at the case-neck will likely not.

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Marrakai
When the bull drops, the bullshit stops!
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www.marrakai-adventure.com.au

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Subject	Posted by	Posted on
Anyone run into this problem?	Benchshooter	02/04/15 05:18 AM
Re: Anyone run into this problem?	Birdhunter50	21/04/15 10:36 PM
Re: Anyone run into this problem?	albertan	21/04/15 11:21 PM
Re: Anyone run into this problem?	Benchshooter	22/04/15 05:23 AM
Re: Anyone run into this problem?	albertan	22/04/15 04:34 PM
Re: Anyone run into this problem?	Benchshooter	23/04/15 04:07 AM
Re: Anyone run into this problem?	albertan	23/04/15 07:01 AM
Re: Anyone run into this problem?	Benchshooter	01/05/15 03:16 AM
Re: Anyone run into this problem?	Ash	01/05/15 06:09 PM
Re: Anyone run into this problem?	DarylS	02/05/15 12:21 AM
Re: Anyone run into this problem?	Benchshooter	02/05/15 05:12 AM
Re: Anyone run into this problem?	chuck375	05/05/15 12:01 PM
Re: Anyone run into this problem?	albertan	07/05/15 12:32 PM
Re: Anyone run into this problem?	DarylS	08/05/15 01:33 AM
Re: Anyone run into this problem?	albertan	19/05/15 02:29 PM
Re: Anyone run into this problem?	Benchshooter	22/05/15 10:06 AM
Re: Anyone run into this problem?	Rule303	22/05/15 04:30 PM
Re: Anyone run into this problem?	DarylS	03/05/15 12:53 AM
Re: Anyone run into this problem?	Marrakai	03/05/15 10:49 AM
Re: Anyone run into this problem?	Benchshooter	04/05/15 01:53 AM
Re: Anyone run into this problem?	DarylS	02/04/15 01:51 PM
Re: Anyone run into this problem?	Benchshooter	02/04/15 09:22 PM
Re: Anyone run into this problem?	mauserand9mm	02/04/15 09:25 PM
Re: Anyone run into this problem?	DoubleD	02/04/15 11:24 PM
Re: Anyone run into this problem?	DarylS	03/04/15 01:55 AM
Re: Anyone run into this problem?	Benchshooter	03/04/15 03:00 AM
Re: Anyone run into this problem?	mauserand9mm	03/04/15 05:26 PM
Re: Anyone run into this problem?	albertan	19/04/15 11:25 PM
Re: Anyone run into this problem?	Benchshooter	21/04/15 10:00 AM
Re: Anyone run into this problem?	albertan	21/04/15 03:35 PM
Re: Anyone run into this problem?	albertan	21/04/15 04:20 PM
Re: Anyone run into this problem?	Benchshooter	21/04/15 09:01 PM
Re: Anyone run into this problem?	eagle27	21/04/15 04:59 PM
Re: Anyone run into this problem?	mauserand9mm	02/04/15 09:21 PM

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