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Shooting & Reloading - Mausers, Big Bores and others >> Big Bore Rifles
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4seventy
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Reged: 07/05/03
Posts: 2210
Loc: Queensland Australia
Re: 416 ruger popping primers
      23/02/11 10:37 AM

I have always thought that a bit of detective work can be better than lots of guess work.
Accurately measuring case head outside diameters, and primer pocket inside diameters "might" reveal something of interest.

You mentioned that there was increased recoil on some/all of the problem loads. Were there any other signs of excess pressure on the cases apart from the loose primers?
I mean was there any resistance when opening the bolt on those rounds after they were fired, and were there any shiny spots on the headstamp area of the case heads of those same rounds?

In reality here you are dealing with 2 major possibles.

1....Excess pressure expanding the case head and primer pocket, which could be caused by a number of things.

2....Soft brass.

If the pressure is high enough to expand the primer pockets to a point that primers easily fall out, there could/should be other signs of excess pressure on the brass.

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Entire topic
Subject Posted by Posted on
* 416 ruger popping primers bigjedd 24/01/11 08:35 PM
. * * Re: 416 ruger popping primers Rule303   02/02/11 09:15 PM
. * * Re: 416 ruger popping primers bigjedd   03/02/11 08:27 PM
. * * Re: 416 ruger popping primers Con   04/02/11 06:06 AM
. * * Re: 416 ruger popping primers bigjedd   04/02/11 07:26 AM
. * * Re: 416 ruger popping primers FATBOY404   04/02/11 03:14 PM
. * * Re: 416 ruger popping primers bigjedd   21/02/11 06:45 PM
. * * Re: 416 ruger popping primers FATBOY404   21/02/11 07:09 PM
. * * Re: 416 ruger popping primers bigjedd   21/02/11 07:47 PM
. * * Re: 416 ruger popping primers 4seventy   23/02/11 10:37 AM
. * * Re: 416 ruger popping primers Con   22/02/11 04:15 AM
. * * Re: 416 ruger popping primers DarylS   22/02/11 11:33 AM
. * * Re: 416 ruger popping primers bigjedd   04/02/11 05:02 PM
. * * Re: 416 ruger popping primers FATBOY404   04/02/11 07:20 PM
. * * Re: 416 ruger popping primers DarylS   05/02/11 02:52 AM
. * * Re: 416 ruger popping primers Paul   23/02/11 12:52 PM
. * * Re: 416 ruger popping primers DarylS   24/02/11 05:21 AM
. * * Re: 416 ruger popping primers Con   24/02/11 09:29 AM
. * * Re: 416 ruger popping primers bigjedd   24/02/11 01:03 PM
. * * Re: 416 ruger popping primers bigjedd   24/02/11 01:19 PM
. * * Re: 416 ruger popping primers bigjedd   24/02/11 01:20 PM
. * * Re: 416 ruger popping primers 4seventy   24/02/11 01:28 PM
. * * Re: 416 ruger popping primers bigjedd   24/02/11 01:33 PM
. * * Re: 416 ruger popping primers DarylS   25/02/11 05:14 AM
. * * Re: 416 ruger popping primers 86thecat   19/03/11 05:15 AM
. * * Re: 416 ruger popping primers DarylS   19/03/11 08:41 AM
. * * Re: 416 ruger popping primers bigjedd   19/03/11 09:20 AM
. * * Re: 416 ruger popping primers bigjedd   06/07/11 08:40 AM
. * * Re: 416 ruger popping primers 4seventy   24/02/11 02:23 PM
. * * Re: 416 ruger popping primers 4seventy   24/02/11 09:03 AM
. * * Re: 416 ruger popping primers 500Nitro   24/02/11 05:37 AM
. * * Re: 416 ruger popping primers bigjedd   24/02/11 07:15 AM
. * * Re: 416 ruger popping primers bigjedd   24/02/11 07:50 AM
. * * Re: 416 ruger popping primers 4seventy   24/02/11 08:07 AM
. * * Re: 416 ruger popping primers MarinePMI   24/02/11 07:59 AM
. * * Re: 416 ruger popping primers bigjedd   05/02/11 08:52 AM
. * * Re: 416 ruger popping primers Altamaha   06/02/11 01:45 PM
. * * Re: 416 ruger popping primers tophet1   25/01/11 06:20 AM
. * * Re: 416 ruger popping primers 500Nitro   25/01/11 06:28 AM
. * * Re: 416 ruger popping primers 450_Ackley   25/01/11 06:42 AM
. * * Re: 416 ruger popping primers tophet1   25/01/11 07:14 AM
. * * Re: 416 ruger popping primers DoubleD   26/01/11 01:57 AM
. * * Re: 416 ruger popping primers 450_Ackley   26/01/11 06:36 AM
. * * Re: 416 ruger popping primers FATBOY404   26/01/11 07:26 AM
. * * Re: 416 ruger popping primers bigjedd   26/01/11 07:44 AM
. * * Re: 416 ruger popping primers bigjedd   27/01/11 11:42 PM
. * * Re: 416 ruger popping primers 450_Ackley   28/01/11 06:03 AM
. * * Re: 416 ruger popping primers Ben   28/01/11 07:04 AM
. * * Re: 416 ruger popping primers bigjedd   25/01/11 07:08 AM
. * * Re: 416 ruger popping primers 450_Ackley   25/01/11 06:10 AM
. * * Re: 416 ruger popping primers Con   29/01/11 03:44 AM
. * * Re: 416 ruger popping primers bigjedd   29/01/11 10:28 AM
. * * Re: 416 ruger popping primers Con   29/01/11 09:18 PM
. * * Re: 416 ruger popping primers 450_Ackley   30/01/11 06:53 AM
. * * Re: 416 ruger popping primers Con   30/01/11 08:30 AM
. * * Re: 416 ruger popping primers 450_Ackley   30/01/11 09:42 AM

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