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DarylS
.700 member


Reged: 10/08/05
Posts: 27014
Loc: Beautiful British Columbia, Ca...
Re: Aussie Copper for M1910
      28/12/17 04:08 AM

Expanding 57mm brass out straight (or .30/06 brass for that matter) is one of the simplest of case forming jobs. One only needs a .44 magnum expander die, then grind a straight taper on the end of the expander button. This will then enter the .7mm or 8mm neck, and with a bit of Imperial die wax in the inside, expand them out to straight in one pass. I do this for my 9.3x57 and with .30/06 and .35 Whelen brass for my .375/06IMP. So simple it is absolutely ridiculous & fool hardy (a waste of money) to buy someone else's cases.

The cases are then simply necked to create a crush fit in a FL or neck sizing die to fit the chamber, whether it is a 9.3x57, 9.5x57, .35 Whelen or .375/06IMP.

The reason for necking straight is to adjust the headspace of the 'new' brass to perfectly fit the chamber of your rifle, so there is NEVER any stretching at the web. If not formed, there will be stretching, which simply continues until eventually separating. Simply necking up will create excessive headspace in many chambers, and up to .007" slop in 'factory" spec. chambers.

I also used this method for forming my 9.3x62 out of .30/06 brass way back in 1982 - still have that brass and it is still being used, after well over 12 rounds per case.

As to this statement "Others say this is a very bad idea, as the brass is likely weakened at critical points during the stretch." - that is simply not true, ie: bullshit."

--------------------
Daryl


"a gun without hammers is like a Spaniel without ears" King George V

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Subject Posted by Posted on
* Aussie Copper for M1910 Rothhammer1 03/10/17 07:50 PM
. * * Re: Aussie Copper for M1910 Rule303   03/10/17 09:26 PM
. * * Re: Aussie Copper for M1910 Rothhammer1   04/10/17 05:54 PM
. * * Re: Aussie Copper for M1910 Rule303   04/10/17 09:38 PM
. * * Re: Aussie Copper for M1910 Rothhammer1   22/12/17 09:28 PM
. * * Re: Aussie Copper for M1910 Waidmannsheil   04/10/17 09:04 PM
. * * Re: Aussie Copper for M1910 Rothhammer1   22/12/17 09:32 PM
. * * Re: Aussie Copper for M1910 Rule303   23/12/17 04:34 PM
. * * Re: Aussie Copper for M1910 kuduae   23/12/17 01:08 AM
. * * Re: Aussie Copper for M1910 Rothhammer1   23/12/17 07:20 PM
. * * Re: Aussie Copper for M1910 DarylS   24/12/17 03:20 AM
. * * Re: Aussie Copper for M1910 Rothhammer1   24/12/17 02:15 PM
. * * Re: Aussie Copper for M1910 kuduae   24/12/17 06:11 AM
. * * Re: Aussie Copper for M1910 Rothhammer1   24/12/17 02:50 PM
. * * Re: Aussie Copper for M1910 kuduae   24/12/17 09:08 PM
. * * Re: Aussie Copper for M1910 Rothhammer1   25/12/17 03:27 PM
. * * Re: Aussie Copper for M1910 DarylS   24/12/17 04:10 PM
. * * Re: Aussie Copper for M1910 paradox_   24/12/17 04:43 PM
. * * Re: Aussie Copper for M1910 Rothhammer1   24/12/17 05:01 PM
. * * Re: Aussie Copper for M1910 Rothhammer1   24/12/17 05:12 PM
. * * Re: Aussie Copper for M1910 Viking338   25/12/17 03:00 AM
. * * Re: Aussie Copper for M1910 Rothhammer1   28/12/17 06:06 PM
. * * Re: Aussie Copper for M1910 Viking338   28/12/17 10:33 PM
. * * Re: Aussie Copper for M1910 Rothhammer1   29/12/17 05:30 PM
. * * Re: Aussie Copper for M1910 Rule303   29/12/17 05:54 PM
. * * Re: Aussie Copper for M1910 Viking338   29/12/17 07:40 PM
. * * Re: Aussie Copper for M1910 Rothhammer1   29/12/17 06:06 PM
. * * Re: Aussie Copper for M1910 DarylS   29/12/17 05:07 AM
. * * Re: Aussie Copper for M1910 Rothhammer1   29/12/17 05:08 PM
. * * Re: Aussie Copper for M1910 Rule303   30/12/17 09:29 PM
. * * Re: Aussie Copper for M1910 Rothhammer1   30/12/17 10:11 PM
. * * Re: Aussie Copper for M1910 kuduae   30/12/17 11:18 PM
. * * Re: Aussie Copper for M1910 Rothhammer1   31/12/17 01:58 PM
. * * Re: Aussie Copper for M1910 Rule303   31/12/17 09:48 AM
. * * Re: Aussie Copper for M1910 DarylS   31/12/17 05:23 AM
. * * Re: Aussie Copper for M1910 Rothhammer1   31/12/17 01:43 PM
. * * Re: Aussie Copper for M1910 DarylS   30/12/17 04:47 AM
. * * Re: Aussie Copper for M1910 Rothhammer1   30/12/17 03:53 PM
. * * Re: Aussie Copper for M1910 DarylS   25/12/17 05:07 AM
. * * Re: Aussie Copper for M1910 DarylS   25/12/17 05:25 AM
. * * Re: Aussie Copper for M1910 paradox_   26/12/17 12:43 PM
. * * Re: Aussie Copper for M1910 Rothhammer1   26/12/17 01:52 PM
. * * Re: Aussie Copper for M1910 Rothhammer1   28/12/17 04:43 PM
. * * Re: Aussie Copper for M1910 DarylS   27/12/17 05:12 AM
. * * Re: Aussie Copper for M1910 kuduae   27/12/17 06:58 AM
. * * Re: Aussie Copper for M1910 kuduae   27/12/17 09:48 AM
. * * Re: Aussie Copper for M1910 Rothhammer1   27/12/17 03:23 PM
. * * Re: Aussie Copper for M1910 paradox_   27/12/17 03:48 PM
. * * Re: Aussie Copper for M1910 Rothhammer1   27/12/17 04:14 PM
. * * Re: Aussie Copper for M1910 Rothhammer1   30/12/17 08:00 PM
. * * Re: Aussie Copper for M1910 Rothhammer1   27/12/17 06:18 PM
. * * Re: Aussie Copper for M1910 kuduae   27/12/17 09:47 PM
. * * Re: Aussie Copper for M1910 Rothhammer1   28/12/17 05:02 PM
. * * Re: Aussie Copper for M1910 Viking338   27/12/17 10:20 PM
. * * Re: Aussie Copper for M1910 Rothhammer1   28/12/17 04:55 PM
. * * Re: Aussie Copper for M1910 kuduae   27/12/17 11:57 PM
. * * Re: Aussie Copper for M1910 Viking338   28/12/17 12:57 AM
. * * Re: Aussie Copper for M1910 DarylS   28/12/17 04:08 AM
. * * Re: Aussie Copper for M1910 Rothhammer1   28/12/17 05:46 PM
. * * Re: Aussie Copper for M1910 DarylS   27/12/17 10:22 AM
. * * Re: Aussie Copper for M1910 Waidmannsheil   25/12/17 09:12 AM
. * * Re: Aussie Copper for M1910 paradox_   24/12/17 06:03 PM
. * * Re: Aussie Copper for M1910 NitroXAdministrator   24/12/17 09:22 PM
. * * Re: Aussie Copper for M1910 Rothhammer1   30/12/17 07:33 PM
. * * Re: Aussie Copper for M1910 Rothhammer1   25/12/17 03:10 PM
. * * Re: Aussie Copper for M1910 Rothhammer1   24/12/17 08:45 PM

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